Question
Studdy Solution
STEP 1
What is this asking? We need to multiply 72 by 45. Watch out! Make sure to keep your columns lined up neatly when multiplying multi-digit numbers!
STEP 2
1. Multiply 72 by 5
2. Multiply 72 by 40
3. Add the results
STEP 3
Alright, let's **start** by multiplying 72 by 5!
We can break this down a bit.
First, we multiply 2 by 5, which gives us **10**.
Write down the **0** and carry-over the **1**.
STEP 4
Next, we multiply 7 by 5, which gives us **35**.
Now, we add the carry-over **1** to **35**, which gives us **36**.
So, the result of 72 multiplied by 5 is **360**!
STEP 5
Now, we'll multiply 72 by 40.
Notice it's 40, not just 4!
Since it's 40, we can think of it as 4 times 10.
Let's start by multiplying 72 by 4.
STEP 6
First, multiply 2 by 4, which gives us **8**.
STEP 7
Next, multiply 7 by 4, which gives us **28**.
STEP 8
So, 72 multiplied by 4 is **288**.
But remember, we were actually multiplying by 40, which is 4 times 10.
So, we need to multiply our result by 10!
We can do this easily by adding a zero at the end.
So, 72 multiplied by 40 is **2880**!
STEP 9
Time to add the results from our previous calculations!
We have **360** (from 72 multiplied by 5) and **2880** (from 72 multiplied by 40).
Let's add them together:
STEP 10
Adding the numbers column by column, we get:
STEP 11
So, our final answer is **3240**!
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