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lara31 [8.8K]
2 years ago
5

Dr. Green has to multiply the weight of the team’s bug spray bottles, 7 x 90 grams. To solve this, he writes out the equation 7

x 9 x 10.
Why does this strategy work?
Mathematics
1 answer:
Dominik [7]2 years ago
4 0
It works because 7 x 9 x 10 is the same thing as 7 x 90, since 9 x 10 is just 90. So basically he is just writing more but the answer will still be the same.
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