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A rectangular room measures 3.8 meters in length and 4.9 meters in width. Jana multiples both numbers together. Which expression would be best for her to use to check the reasonableness of her decimal
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A rectangular room measures 3.8 meters in length and 4.9 meters in width. Jana multiples both numbers together. Which expression would be best for her to use to check the reasonableness of her decimal multiplication?

A) 3x4
B)3x5
C)4x4
D)4x5

User Ulmas
by
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2 Answers

5 votes

Answer:

d 4 x 5

Explanation:

round

User John LaFleur
by
8.3k points
5 votes
Round 3.8 to 4 and round 4.9 to 5. So you get 4 x 5, or D)
User Tobriand
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