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

Question

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] · Answer 1 · 2022-08-31T04:02:48+03:00

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.