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Ipatiy [6.2K]
3 years ago
5

How could you calculate each product? Describe the strategy you would use. Then calculate.

Mathematics
1 answer:
VashaNatasha [74]3 years ago
8 0
Hey there!

1. To solve 9 x 5 , I could add the number 9 five times . . .

9 + 9 + 9 + 9 + 9 = 45

9 x 5 = 45 <----

2. I would use the same strategy as the first one, except add the number 8 five times . . .

8 + 8 + 8 + 8 + 8 = 40

8 x 5 = 40 <----

Hope this helps you.
Have a great day!
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3 years ago
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Ede4ka [16]

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let's use,  πr + 2r

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3 0
2 years ago
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