Chapter 3: Decimals & Equations

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Presentation transcript:

Chapter 3: Decimals & Equations 3.2 Estimating Decimal Products & Quotients

Example 1 Estimate: 7.65 · 3.2

Example 1a Estimate: 17.02 · 3.78

Example 2 Arlene bought 6 yd of fabric to make a Lone Star quilt. The fabric cost $6.75/yd. The sales clerk charged Arlene $45.90 before tax. Did the clerk make a mistake?

Example 3 A bowling ball has a mass of 5.61 kg. Each bowling pin has a mass of 1.57 kg. How many bowling pins are about equal to the bowling ball in mass?

Example 4 Is 2.15 a reasonable quotient for 17.931 ÷ 8.34?