Question

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

Answer 1

Round 3.8 to 4 and round 4.9 to 5. So you get 4 x 5, or D)

Answer 2

Answer:

d 4 x 5

Step-by-step explanation:

round