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mixas84 [53]
3 years ago
11

Explain how 9*4 can help you find 9*8

Mathematics
2 answers:
statuscvo [17]3 years ago
4 0
It can help because 9×4 =36, and 9×8=72. if you divide 72 by 2 you get 36 which is the answer to 9 ×4. basically because nine is the same in both problems you are multiplying by 4 (and you know 4 is half of 8) you can assume that multiplying the sum of 4 and 9 that you will get the sum of 8 and 9.
Troyanec [42]3 years ago
4 0
Because 9*4=36 and 4 is half of 8 so you need to multiply 36*2 and you get 72 and 9*8=72
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