Exercise 5 Page 140

We want to estimate 78 % of 112. Let's start by rounding each number. rcl 78 % & ≈ & 80 % [0.3em] 112 & ≈ & 110 Now we multiply 80 % by 110 to get an estimation. First, we write the percent as a fraction.

We found that 78 % of 112 is about 88.