Question

Gena wants to estimate the quotient of –21.87 divided by 4.79. Which expression shows the estimate using front-end estimation?

-21 ÷ 4
-21 ÷ 5
-20 ÷ 4
-20 ÷ 5

Answer 1

-5.25
-4.2
-5
-4
This is how we solve this problem

Answer 2

-21/5 = -5.25 or -5

Explanation:

It is so because I estimated the -21.87 to -21 because of the 8 being higher than five. I estimated the 4 to 5 because of the 7 being higher than five also.