3 years ago

Use doubles to find the sum of 7+8.

Mathematics

2 answers:

lyudmila [28]3 years ago

6 0

I believe, 8+8=16, 16-1=15

Tems11 [23]3 years ago

4 0

7+8 =15
so u can use 7+7 +1
since 15 is off number there is no exact double number for that u have to use 1

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