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Glencoe Math: Course 2, Volume 1 View details

2. Percent and Estimation

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Exercise 23 Page 117

Round each number and multiply.

About 90

Practice makes perfect

We want to estimate 92 % of 104. Let's start by rounding each number. rcl 92 % & ≈ & 90 % [0.3em] 104 & ≈ & 100 Now we multiply 90 % by 100 to get an estimation. First, we write the percent as a fraction.

90 %* 100

WriteAsFrac

Write as a fraction

90/100 * 100

FracMultDenomToNumber

a/100* 100 = a

90

We found that 92 % of 104 is about 90.