4 years ago

Break a part the addends to find the sum 18+21

2 answers:

Mrac [35]4 years ago

4 0

18------10+8
20------20+1

10+8+20+1=39

Hope that helped:)

Pavel [41]4 years ago

3 0

- - Solve:
18 - - 10+8
21 - - 10+11

10+8+10+11=39

=18+21=39<span />

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