CAAT Numerical Estimation and Approximation 3

Question 1

Round 3,847 to the nearest hundred.

Accepted Answer

3,800

Answer

The digit in the tens place is 4, which is less than 5, so round down to 3,800.

Question 2

Which is a reasonable estimate for 22 × 48?

Accepted Answer

1,000

Answer

Rounding 22 to 20 and 48 to 50 gives 20 × 50 = 1,000.

Question 3

Estimate how many groups of 15 fit into 200.

Accepted Answer

13

Answer

200 ÷ 15 ≈ 13.3, so approximately 13 groups fit.

Question 4

If you drive 55 mph for 3.5 hours, approximately how far do you travel?

Accepted Answer

200 miles

Answer

55 × 3.5 = 192.5 miles, which rounds to approximately 200 miles.

Question 5

About how much is 5.8 + 4.3 + 6.1?

Accepted Answer

16

Answer

5.8 + 4.3 + 6.1 = 16.2, which is closest to 16.

CAAT - Canadian Adult Achievement Test Practice Test