Solved on Dec 12, 2023

Solve the addition problem: 9+3=9+1+2=9+3=9+1+2=\square

STEP 1

Assumptions
1. We are performing a simple addition operation.
2. We are using the associative property of addition, which states that the sum remains the same regardless of how the addends are grouped.

STEP 2

First, we need to recognize that the addition operation can be broken down into smaller parts using the associative property.
9+3=9+1+29 + 3 = 9 + 1 + 2

STEP 3

Now, we add the first two numbers which are grouped together.
9+1=109 + 1 = 10

STEP 4

Next, we add the result from the previous step to the remaining number.
10+2=1210 + 2 = 12

STEP 5

Therefore, the completed addition problem is:
9+3=9+1+2=129 + 3 = 9 + 1 + 2 = 12
The value in the square should be 1212.

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