CAAT Numerical Estimation and Approximation 2

Question 1

Which is the best estimate for 67 ÷ 4?

Accepted Answer

17

Answer

68 ÷ 4 = 17, so 67 ÷ 4 is approximately 17.

Question 2

What is approximately 13% of 780?

Accepted Answer

100

Answer

13% of 780 is close to 13% of 800 = 104, but rounding gives approximately 100.

Question 3

Estimate the value of 4.9 × 6.1.

Accepted Answer

30

Answer

Rounding 4.9 to 5 and 6.1 to 6 gives 5 × 6 = 30.

Question 4

What is the closest estimate for 1,005 − 497?

Accepted Answer

500

Answer

Rounding to 1,000 − 500 = 500.

Question 5

A worker earns $14.75 per hour. Estimate earnings for 38 hours.

Accepted Answer

$600

Answer

Rounding $14.75 to $15 and 38 to 40 gives $15 × 40 = $600.

CAAT - Canadian Adult Achievement Test Practice Test