Question

Use rounding to estimate the sum.

Estimate the sum.
78.9+71.2

Answer 1

150

When estimating you just round off the numbers so, 78.9 becomes 79 and 71.2 becomes 71 so, 79 + 71 = 150.

Answer 2

150

Explanation:

add 79+ 71 because you rounded to get that number then add :)