Numbers & Operations

Problem 6501

Draw a model and write the expression for doubling the sum of 5 and 4: $(5+4) \times 2$ or $(5+4)+(5+4)$ .

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Problem 6502

Calculate $52 - 33$ .

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Problem 6503

En una recta numérica, S está en -5 y G en 25. Si L está a $1/3$ del camino de S a G, ¿dónde está L?

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Problem 6504

Kerry has 3.15 pounds of strawberries. How many batches can she make if each batch needs 0.75 pounds?

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Problem 6505

Round 3.681076 to three significant figures.

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Problem 6506

Round 247081352.4 to 2 significant figures. What is the result?

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Problem 6507

Round 247081352.4 to 2 significant figures.

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Problem 6508

Rewrite 247081352.4 with 2 significant figures: 2.4, 250000000, 240000000, or 2.5?

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Problem 6509

Rewrite 22 with 1 significant figure.

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Problem 6510

Round 254.6381 to three significant figures.

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Problem 6511

Calculate the result of $413.2 - 0.004 - 2.0$ and express your answer with the correct significant figures.

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Problem 6512

Calculate $0.0300 + 212.1$ and report the answer with the correct significant figures.

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Problem 6513

Calculate $18.01 \times 2.23 \times 14.8$ and report the answer with the correct significant figures.

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Problem 6514

How much heavier is a piece of iron ( $\frac{3}{4}$ lb) than a piece of aluminum ( $\frac{1}{2}$ lb)?

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Problem 6515

List the odd natural numbers in the set $A$ that are greater than 5 and less than 20.

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Problem 6516

How long will it take to hear thunder if it strikes 85 miles away, given sound travels 12.3 miles per minute?

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Problem 6517

Find the number of correct answers if $\frac{8}{10}=\frac{x}{50}$ .

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Problem 6518

8. If $\frac{16 \text{ pearls}}{20 \text{ opals}}=\frac{8 \text{ pearls}}{\square \text{ opals}}$ , find the value of $\square$ .

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Problem 6519

Calculate the product of fractions: $\frac{3}{5}\left(\frac{2}{3}\right)=$ .

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Problem 6520

Find the value of the square in the equation: $\frac{32 \text { pencils }}{8 \text { erasers }}=\frac{8 \text { pencils }}{\square \text { erasers }}$ .

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Problem 6521

6. If 16 tires are for 4 cars, how many tires are for 1 car? Solve: $\frac{16 \text{ tires}}{4 \text{ cars}}=\frac{\square_{\text{tires}}}{1 \text{ car}}$

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Problem 6522

How many significant figures are in the number 110.00?

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Problem 6523

Rewrite 56.0 with 2 significant figures.

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Problem 6524

Calculate the value of $-\frac{3}{10} \div\left(-\frac{4}{5}\right)$ .

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Problem 6525

Calculate and report the sum with significant figures: $25.69 + 3.542 + 18.01$

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Problem 6526

Calculate $35.6 + 4.31$ and report the answer with the correct significant figures.

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Problem 6527

Calculate $657.70 - 26.543$ and report the answer with the correct significant figures.

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Problem 6528

Anthony spent \$21 on entertainment, \$39 on food, and \$23 on gas. Estimate total spending for 13 weeks by rounding to nearest ten.

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Problem 6529

Wesley spends \$190 on phone, \$318 on electric, and \$288 on health. If he earns \$2800, how much is left after bills?

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Problem 6530

Calculate the sum of 126.3851, 7.2, 73.607, and 15.98, then report the answer with correct significant figures.

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Problem 6531

Calculate and report using significant figures: $29.7 \times 0.3$

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Problem 6532

Calculate $0.5000 \div 3.4$ and report the answer with the correct significant figures.

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Problem 6533

The result of dividing an integer by a decimal is not always an integer. Show examples like $3 \div 1.5$ and $1.8 \div 0.3$ .

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Problem 6534

Calculate $3.0 \times 5$ and provide the answer with the correct significant figures.

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Problem 6535

Simplify the expression: $4\left(\frac{1}{2}\right)$

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Problem 6536

Multiply and simplify: $\frac{1}{7} \cdot \frac{1}{3}$ .

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Problem 6537

Calculate $12306 \times 2451$ and report the answer with the correct significant figures.

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Problem 6538

Calculate and report the result with significant figures for $4.681 / 5.21$ .

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Problem 6539

Aaliyah buys $3 \frac{1}{2}$ lbs of lemons and $2 \frac{2}{5}$ lbs of strawberries. What is their total cost? \$3.48 for lemons, \$4.33 for strawberries.

See Solution

Problem 6540

Calculate the product and express it as a reduced fraction: $\frac{5}{3} \div \frac{4}{5}=$

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Problem 6541

16. What is $2.07 \div 0.9$ ?

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Problem 6542

Calculate $2 + 9 \times 2 \frac{3}{4}$ .

See Solution

Problem 6543

Calculate $3.89 \div 10.00$ .

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Problem 6544

Jean Claude's factory makes 1,840 pencil cases daily. Find total cases produced in 180 days: $1,840 \times 180$ .

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Problem 6545

How many zeros are in the product $(6 \times 5) \times 10^{3}$ ?

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Problem 6546

Shiola sleeps 479 minutes per night. Calculate her total sleep in 4 weeks: $479 \times 28$ .

See Solution

Problem 6547

How many significant figures are in the number 0.02?

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Problem 6548

How many stamps can Michaela buy with \ $30 if each costs \$0.28? Calculate:$ \frac{30}{0.28}$.

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Problem 6549

How many significant figures are in the number 1.00?

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Problem 6550

Evaluate $B C$ with $A=5$ , $B=-4$ , and $C=2$ . Choices: $-8$ , 6, $-6$ .

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Problem 6551

Find the number of significant figures in the number: $3.5 \times 10^{3}$ .

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Problem 6552

Evaluate $(-B)^{2}$ for $A=5$ , $B=-4$ , and $C=2$ . What is the result?

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Problem 6553

Simplify the expression $(-7 / 8)(-3 / 4)$ . Choose from: $6 / 7$ , $21 / 32$ , $-21 / 32$ .

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Problem 6554

What is the cost per pound of chicken if 4.5 pounds cost \$ 13.40? Round to the nearest cent.

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Problem 6555

Rewrite 76.00 with 1 significant figure.

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Problem 6556

What is the cost per pound of chicken if 4.5 pounds cost \$ 13.40? Round to the nearest cent.

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Problem 6557

Calculate $19.00 + 1.01$ and report the answer with the correct significant figures.

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Problem 6558

Calculate $64 / 20$ and report your answer with the correct significant figures.

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Problem 6559

Calculate $0.5000 / 3.4$ and provide the answer with the correct significant figures.

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Problem 6560

Calculate $4+[2-(8+9)]$ using the order of operations. Choose A or B for your answer.

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Problem 6561

Calculate the sum of 32 and 28. What is $32 + 28$ ?

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Problem 6562

Calculate the sum of 32 and 28.

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Problem 6563

Find the density of quartz if its volume is 64 cm³ and mass is 100 g. Round to the nearest tenth: $density = \frac{mass}{volume}$ .

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Problem 6564

An art teacher hangs 2 rows of 10 paintings each. How many paintings does she have in total?

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Problem 6565

Find the sum of 98 and 33: $98 + 33$ .

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Problem 6566

Mai has 40 tens. How many hundreds is that? Write the number.

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Problem 6567

Find the scale factor for the ratio $\frac{3 \mathrm{in}}{12 \mathrm{ft}}$ . Options: a. $\frac{1}{4}$ b. $\frac{1}{48}$ c. $\frac{1}{2}$ d. $\frac{1}{3}$

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Problem 6568

Simplify the expression $4.3 \frac{\mathrm{g} \cdot \mathrm{mL} \cdot \mathrm{g}}{\mathrm{g} \cdot \mathrm{mL} \cdot \mathrm{s}}$ .

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Problem 6569

Find the volume in $\mathrm{cm}^3$ of a $9.37 \mathrm{~g}$ metal piece with a density of $4.66 \mathrm{~g/cm}^3$ .

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Problem 6570

A cow produces 53 pounds of milk daily. Estimate gallons produced using the fact that 1 gallon weighs 8.5 pounds.

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Problem 6571

How many nitrogen atoms are in one mole of serotonin, $\mathrm{C}_{10} \mathrm{H}_{12} \mathrm{~N}_{2} \mathrm{O}$ ? A. $1.2 \times 10^{24}$ B. $6.02 \times 10^{23}$ C. $7.2 \times 10^{24}$ D. $6.02 \times 10^{24}$

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Problem 6572

Simplify the unit: $9.2 \frac{\mathrm{g} \cdot \mathrm{cm}^{3}}{\mathrm{g} \cdot \mathrm{cm}^{2}}$ . What is the simplest form?

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Problem 6573

Find the sum of $10.26 \mathrm{~g}$ and $0.063 \mathrm{~g}$ .

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Problem 6574

1. Calculate $2,673 + 567$ .
2. Find the sum of $45 + 59 + 61$ .
3. A crayon company made 7,491 green, 5,063 red crayons. How many more green than red?

See Solution

Problem 6575

Calculate $1,241 - 589$ .

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Problem 6576

Simplify: $\sqrt{125}=$

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Problem 6577

Simplify: $\sqrt{32}=$

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Problem 6578

Simplify $\sqrt{405}$ into the format $a \sqrt{b}$ . What is $\sqrt{405}=$ ?

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Problem 6579

Simplify $\sqrt{12}$ to the form $a \sqrt{b}$ . What is the result?

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Problem 6580

Simplify $\sqrt{45}$ into the form $a \sqrt{b}$ . What is the result?

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Problem 6581

Hakim listened to a song 3 times for a total of 14.64 minutes. What is the duration of one song in minutes? $\frac{14.64}{3}$

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Problem 6582

How many pyruvic acid molecules are produced from 1 glucose in glycolysis? (1 point) 1, 4, 2, or 0?

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Problem 6583

Convert $1.459 \mathrm{~g} / \mathrm{mL}$ to $\mathrm{lb} / \mathrm{gal}$ .

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Problem 6584

Convert $6,718 \, \text{ft}^3$ to $\text{m}^3$ .

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Problem 6585

Create a table of five equivalent ratios for the fraction $\frac{3}{5}$ , ending with a part out of 100.

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Problem 6586

Convert $7 \mathrm{ft}$ to $\mathrm{cm}$ and express the result as a multiple of $10^{2} \mathrm{cm}$ .

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Problem 6587

Convert $64 \mathrm{ft/s}$ to $\mathrm{cm/min}$ and express your answer in scientific notation.

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Problem 6588

Emma measured 4.23 inches of rain over 3 hours. How much rain fell per hour? Calculate: $\frac{4.23}{3}$ .

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Problem 6589

Kimberly bought 9 m and 9.3 m of tape. How many meters of tape did she buy in total? $9 + 9.3$

See Solution

Problem 6590

Fractional Representations:
1. Model $2/5$ on a 10x10 grid.
2. Create a table of 5 equivalent ratios starting from $2/5$ to part out of whole (100).
3. Identify decimal/percent equivalents: A. $0.04,4\%$ B. $0.4,40\%$ C. $0.25,25\%$ D. $2.5,250\%$ . Explain any incorrect choice.
4. Calculate $2/5$ of 25 dum-dums.
5. Draw a number line for question 4's data.

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Problem 6591

Denise drives for 2.5 hours at 64 mph. How far does she travel on the highway? Use the formula $d = rt$ .

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Problem 6592

Linda buys 35 packs of paper at \$3.99 each. How much does she spend in total?

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Problem 6593

Nomsa wants to buy a used bakkie. Calculate the real cost of the loan using: Real cost = monthly repayment × total months.

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Problem 6594

Matt had 3.6 m of fabric and cut off 0.85 m. How much fabric remains? Calculate: $3.6 - 0.85$ .

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Problem 6595

Calculate $-\sqrt{\frac{4}{64}}$ .

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Problem 6596

Find the value of $\sqrt{\frac{16}{49}}$ .

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Problem 6597

Calculate $-\sqrt{\frac{64}{121}}$ .

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Problem 6598

Find the value of $\sqrt{\frac{121}{169}}$ .

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Problem 6599

Calculate the value of $\sqrt{\frac{196}{4}}$ .

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Problem 6600

Calculate $-\sqrt{\frac{25}{256}}$ .

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1 ...63 64 65 66 67 68 69 ...118

Numbers & Operations

Problem 6501

Draw a model and write the expression for doubling the sum of 5 and 4: (5+4)×2(5+4) \times 2(5+4)×2 or (5+4)+(5+4)(5+4)+(5+4)(5+4)+(5+4).

Problem 6502

Calculate 52−3352 - 3352−33.

Problem 6503

En una recta numérica, S está en -5 y G en 25. Si L está a 1/31/31/3 del camino de S a G, ¿dónde está L?

Problem 6504

Kerry has 3.15 pounds of strawberries. How many batches can she make if each batch needs 0.75 pounds?

Problem 6505

Round 3.681076 to three significant figures.

Problem 6506

Round 247081352.4 to 2 significant figures. What is the result?

Problem 6507

Round 247081352.4 to 2 significant figures.

Problem 6508

Rewrite 247081352.4 with 2 significant figures: 2.4, 250000000, 240000000, or 2.5?

Problem 6509

Rewrite 22 with 1 significant figure.

Problem 6510

Round 254.6381 to three significant figures.

Problem 6511

Calculate the result of 413.2−0.004−2.0413.2 - 0.004 - 2.0413.2−0.004−2.0 and express your answer with the correct significant figures.

Problem 6512

Calculate 0.0300+212.10.0300 + 212.10.0300+212.1 and report the answer with the correct significant figures.

Problem 6513

Calculate 18.01×2.23×14.818.01 \times 2.23 \times 14.818.01×2.23×14.8 and report the answer with the correct significant figures.

Problem 6514

How much heavier is a piece of iron (34\frac{3}{4}43​ lb) than a piece of aluminum (12\frac{1}{2}21​ lb)?

Problem 6515

List the odd natural numbers in the set AAA that are greater than 5 and less than 20.

Problem 6516

How long will it take to hear thunder if it strikes 85 miles away, given sound travels 12.3 miles per minute?

Problem 6517

Find the number of correct answers if 810=x50\frac{8}{10}=\frac{x}{50}108​=50x​.

Problem 6518

8. If 16 pearls20 opals=8 pearls□ opals\frac{16 \text{ pearls}}{20 \text{ opals}}=\frac{8 \text{ pearls}}{\square \text{ opals}}20 opals16 pearls​=□ opals8 pearls​, find the value of □\square□.

Problem 6519

Calculate the product of fractions: 35(23)=\frac{3}{5}\left(\frac{2}{3}\right)=53​(32​)=.

Problem 6520

Find the value of the square in the equation: 32 pencils 8 erasers =8 pencils □ erasers \frac{32 \text { pencils }}{8 \text { erasers }}=\frac{8 \text { pencils }}{\square \text { erasers }}8 erasers 32 pencils ​=□ erasers 8 pencils ​.

Problem 6521

6. If 16 tires are for 4 cars, how many tires are for 1 car? Solve: 16 tires4 cars=□tires1 car\frac{16 \text{ tires}}{4 \text{ cars}}=\frac{\square_{\text{tires}}}{1 \text{ car}}4 cars16 tires​=1 car□tires​​

Problem 6522

How many significant figures are in the number 110.00?

Problem 6523

Rewrite 56.0 with 2 significant figures.

Problem 6524

Calculate the value of −310÷(−45)-\frac{3}{10} \div\left(-\frac{4}{5}\right)−103​÷(−54​).

Problem 6525

Calculate and report the sum with significant figures: 25.69+3.542+18.0125.69 + 3.542 + 18.0125.69+3.542+18.01

Problem 6526

Calculate 35.6+4.3135.6 + 4.3135.6+4.31 and report the answer with the correct significant figures.

Problem 6527

Calculate 657.70−26.543657.70 - 26.543657.70−26.543 and report the answer with the correct significant figures.

Problem 6528

Anthony spent \$21 on entertainment, \$39 on food, and \$23 on gas. Estimate total spending for 13 weeks by rounding to nearest ten.

Problem 6529

Wesley spends \$190 on phone, \$318 on electric, and \$288 on health. If he earns \$2800, how much is left after bills?

Problem 6530

Calculate the sum of 126.3851, 7.2, 73.607, and 15.98, then report the answer with correct significant figures.

Problem 6531

Calculate and report using significant figures: 29.7×0.329.7 \times 0.329.7×0.3

Problem 6532

Calculate 0.5000÷3.40.5000 \div 3.40.5000÷3.4 and report the answer with the correct significant figures.

Problem 6533

The result of dividing an integer by a decimal is not always an integer. Show examples like 3÷1.53 \div 1.53÷1.5 and 1.8÷0.31.8 \div 0.31.8÷0.3.

Problem 6534

Calculate 3.0×53.0 \times 53.0×5 and provide the answer with the correct significant figures.

Problem 6535

Simplify the expression: 4(12)4\left(\frac{1}{2}\right)4(21​)

Problem 6536

Multiply and simplify: 17⋅13\frac{1}{7} \cdot \frac{1}{3}71​⋅31​.

Problem 6537

Calculate 12306×245112306 \times 245112306×2451 and report the answer with the correct significant figures.

Problem 6538

Calculate and report the result with significant figures for 4.681/5.214.681 / 5.214.681/5.21.

Problem 6539

Aaliyah buys 3123 \frac{1}{2}321​ lbs of lemons and 2252 \frac{2}{5}252​ lbs of strawberries. What is their total cost? \$3.48 for lemons, \$4.33 for strawberries.

Problem 6540

Draw a model and write the expression for doubling the sum of 5 and 4: $(5+4) \times 2$ or $(5+4)+(5+4)$ .

Calculate $52 - 33$ .

En una recta numérica, S está en -5 y G en 25. Si L está a $1/3$ del camino de S a G, ¿dónde está L?

Calculate the result of $413.2 - 0.004 - 2.0$ and express your answer with the correct significant figures.

Calculate $0.0300 + 212.1$ and report the answer with the correct significant figures.

Calculate $18.01 \times 2.23 \times 14.8$ and report the answer with the correct significant figures.

How much heavier is a piece of iron ( $\frac{3}{4}$ lb) than a piece of aluminum ( $\frac{1}{2}$ lb)?

List the odd natural numbers in the set $A$ that are greater than 5 and less than 20.

Find the number of correct answers if $\frac{8}{10}=\frac{x}{50}$ .

8. If $\frac{16 \text{ pearls}}{20 \text{ opals}}=\frac{8 \text{ pearls}}{\square \text{ opals}}$ , find the value of $\square$ .

Calculate the product of fractions: $\frac{3}{5}\left(\frac{2}{3}\right)=$ .

Find the value of the square in the equation: $\frac{32 \text { pencils }}{8 \text { erasers }}=\frac{8 \text { pencils }}{\square \text { erasers }}$ .

6. If 16 tires are for 4 cars, how many tires are for 1 car? Solve: $\frac{16 \text{ tires}}{4 \text{ cars}}=\frac{\square_{\text{tires}}}{1 \text{ car}}$

Calculate the value of $-\frac{3}{10} \div\left(-\frac{4}{5}\right)$ .

Calculate and report the sum with significant figures: $25.69 + 3.542 + 18.01$

Calculate $35.6 + 4.31$ and report the answer with the correct significant figures.

Calculate $657.70 - 26.543$ and report the answer with the correct significant figures.

Calculate and report using significant figures: $29.7 \times 0.3$

Calculate $0.5000 \div 3.4$ and report the answer with the correct significant figures.

The result of dividing an integer by a decimal is not always an integer. Show examples like $3 \div 1.5$ and $1.8 \div 0.3$ .

Calculate $3.0 \times 5$ and provide the answer with the correct significant figures.

Simplify the expression: $4\left(\frac{1}{2}\right)$

Multiply and simplify: $\frac{1}{7} \cdot \frac{1}{3}$ .

Calculate $12306 \times 2451$ and report the answer with the correct significant figures.

Calculate and report the result with significant figures for $4.681 / 5.21$ .

Aaliyah buys $3 \frac{1}{2}$ lbs of lemons and $2 \frac{2}{5}$ lbs of strawberries. What is their total cost? \$3.48 for lemons, \$4.33 for strawberries.

Calculate the product and express it as a reduced fraction: $\frac{5}{3} \div \frac{4}{5}=$

16. What is $2.07 \div 0.9$ ?

Calculate $2 + 9 \times 2 \frac{3}{4}$ .

Calculate $3.89 \div 10.00$ .

Jean Claude's factory makes 1,840 pencil cases daily. Find total cases produced in 180 days: $1,840 \times 180$ .

How many zeros are in the product $(6 \times 5) \times 10^{3}$ ?

Shiola sleeps 479 minutes per night. Calculate her total sleep in 4 weeks: $479 \times 28$ .

How many stamps can Michaela buy with \ $30 if each costs \$0.28? Calculate:$ \frac{30}{0.28}$.

Evaluate $B C$ with $A=5$ , $B=-4$ , and $C=2$ . Choices: $-8$ , 6, $-6$ .

Find the number of significant figures in the number: $3.5 \times 10^{3}$ .

Evaluate $(-B)^{2}$ for $A=5$ , $B=-4$ , and $C=2$ . What is the result?

Simplify the expression $(-7 / 8)(-3 / 4)$ . Choose from: $6 / 7$ , $21 / 32$ , $-21 / 32$ .

Calculate $19.00 + 1.01$ and report the answer with the correct significant figures.

Calculate $64 / 20$ and report your answer with the correct significant figures.

Calculate $0.5000 / 3.4$ and provide the answer with the correct significant figures.

Calculate $4+[2-(8+9)]$ using the order of operations. Choose A or B for your answer.

Calculate the sum of 32 and 28. What is $32 + 28$ ?

Find the density of quartz if its volume is 64 cm³ and mass is 100 g. Round to the nearest tenth: $density = \frac{mass}{volume}$ .

Find the sum of 98 and 33: $98 + 33$ .

Find the scale factor for the ratio $\frac{3 \mathrm{in}}{12 \mathrm{ft}}$ . Options: a. $\frac{1}{4}$ b. $\frac{1}{48}$ c. $\frac{1}{2}$ d. $\frac{1}{3}$

Simplify the expression $4.3 \frac{\mathrm{g} \cdot \mathrm{mL} \cdot \mathrm{g}}{\mathrm{g} \cdot \mathrm{mL} \cdot \mathrm{s}}$ .

Find the volume in $\mathrm{cm}^3$ of a $9.37 \mathrm{~g}$ metal piece with a density of $4.66 \mathrm{~g/cm}^3$ .

Simplify the unit: $9.2 \frac{\mathrm{g} \cdot \mathrm{cm}^{3}}{\mathrm{g} \cdot \mathrm{cm}^{2}}$ . What is the simplest form?

Find the sum of $10.26 \mathrm{~g}$ and $0.063 \mathrm{~g}$ .

1. Calculate $2,673 + 567$ .
2. Find the sum of $45 + 59 + 61$ .
3. A crayon company made 7,491 green, 5,063 red crayons. How many more green than red?