Question

Which expression has an estimated product of 45? 44.7 times 2.1 7.5 times 8.4 8.7 times 5.28 38.1 times 7.3

Answer 1

C) 8.7 x 5.28

Explanation:

Round 8.7 to 9, and round 5.28 to 5. Then you know your answer is reasonable because when you multiply 5 x 9, it equals 45! Hope this helps...

Answer 2

8.7 times 5.28

Explanation:

8.7 x 5.28 = 45.936.