asked 37.5k views
3 votes
Identify the properties that are used to find each sum.

69 + 22 = (60 + 9) + (20 + 2)
= 60 + 20 + 9 + 2
= (60 + 20) + (9 + 2)
= 80 + 11
= 91

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User Lhk
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1 Answer

2 votes

Answer:

Explanation:

5

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