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Understanding Decomposing Two-Digit Addition: A Step-by-Step Guide

This guide explains the process of decomposing two-digit addition using the example of 34 + 52. First, we break the numbers down into their tens and ones components using expanded notation (34 = 30 + 4, 52 = 50 + 2). Next, we add the tens together (30 + 50) and the ones together (4 + 2). By calculating the sums of both places, we reach the total of 86. This structured method aids in understanding addition and helps children visualize the problem more clearly.

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Understanding Decomposing Two-Digit Addition: A Step-by-Step Guide

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  1. Decomposing2 digit addition

  2. 34 + 52 First, break the numbers into their values of tens and ones. This is called expanded notation. 34= 30 + 4 52= 50 + 2

  3. 34 + 52Next, add the tens. Then, add the ones.30 + 450 + 280 + 6

  4. 34 + 52. Once you have the sums of the tens and ones places you can write the standard form of the number.30 + 450 + 280 + 6 = 86

  5. This is how the problem may look when written by your child: 34 34 + 52+52 30 + 450 + 2 80 + 6 = 86

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