Multiplying and dividing decimal numbers

Estimate 4.5 x 3.78

• 25
• 20
• 200
• 250

Use compatible numbers to estimate: 19.45 ÷ 4.92

• 4.5
• 5
• 4

Estimate the quotient:

1,175 ÷ 4

• 300

• 3

• 200

• 0

Estimate 49.2 x 10.3

• 49 x 10 or 490

• 50 x 10 or 500

• 49 x 11 or 539

Which is the most accurate way to estimate 34% of 28?

The teacher bought 67 pencils for $0.29 each. Which of the following provides the best estimate for how much she spent?

• A 70 × 0.3 = 21
• B 70 × 0.2 = 14
• C 60 × 0.2 = 12
• D 100 × 0.25 = 25

One pound of bananas costs $0.95. If a bunch of bananas weighs 2.87 pounds, about how much will the bananas cost?

• $4

• $2

• $3

• $1

Estimate 4.8 x 3.2

• 12

• 15

• 10

Estimate.
60.94  $\div$  5.7

• 5

• 8

• 10

• 20