Estimating Quotients and Products

Estimate the product or quotient.
19.801 * 2.78

• 40

• 60

• 55.0468

• 55

Estimate the product.

23.2 × 41 ≈

• 800

• 900

• 1000

• 1200

Without doing the multiplication, match each expression to the correct product. Use estimation and number sense to help you.

• 2.023

• 8.32 x 1.15

• 19.716

• 7.95 x 2.48

• 9.568

• 6.12 x 4.85

• 29.682

• 5.78 x 0.35

Match the expression with its most reasonable estimate.

6.7 x 12.3

• 112

• 84

• 176

• 8

• 12

Estimate 66.3 ÷ 11

• 7

• 6

• 8

• 9

What would be an estimate of 78.9 / 9 ?

• 7

• 8

• 9

• 10

ESTIMATE: 4.76 x 24

• 100

• 80

• 150

• 25

The product or quotient.
11.8 * 6.125

• 72.275

• 72

• 60

• 72.28

Match the expression with its most reasonable estimate.

3.99 x 29

• 12

• 120

• 176

• 112

• 16

Arnold is solving this multiplication problem: 8.12 × 4.7. Which of these estimates can Arnold use to help him determine where the decimal point belongs in the product?

• 80 × 40 = 3,200

• 8 × 5 = 40

• 800 × 4 = 3,200

• 800 × 5 = 4,000