Stanford Achievement Test Stanford Achievement Mathematics Procedures 4

Question 1

What is the greatest common factor (GCF) of 48 and 72?

Accepted Answer

24

Answer

The factors of 48 and 72 share 24 as the largest common factor.

Question 2

Evaluate: (3 + 5) × 4 – 6 ÷ 2

Accepted Answer

29

Answer

Parentheses first: 8 × 4 – 6 ÷ 2 = 32 – 3 = 29.

Question 3

A train travels 360 miles in 6 hours. What is its average speed in miles per hour?

Accepted Answer

60 mph

Answer

Speed = distance ÷ time = 360 ÷ 6 = 60 mph.

Question 4

What is 5/8 – 1/4?

Accepted Answer

3/8

Answer

Convert 1/4 to 2/8, then 5/8 – 2/8 = 3/8.

Question 5

Which decimal is equivalent to 7/20?

Accepted Answer

0.35

Answer

7/20 = 35/100 = 0.35.

Stanford Achievement Test Practice Test