STAAR Grade 6: Math

Question 1

What is the greatest common factor (GCF) of 24 and 36?

Accepted Answer

12

Answer

The factors of 24 are 1, 2, 3, 4, 6, 8, 12, 24 and of 36 are 1, 2, 3, 4, 6, 9, 12, 18, 36; the greatest common factor is 12.

Question 2

What is 3/4 of 48?

Accepted Answer

36

Answer

3/4 of 48 = (3 × 48) ÷ 4 = 144 ÷ 4 = 36.

Question 3

What is the least common multiple (LCM) of 4 and 6?

Accepted Answer

12

Answer

The multiples of 4 are 4, 8, 12... and of 6 are 6, 12...; the least common multiple is 12.

Question 4

Evaluate the expression: 4 + 3² × 2

Accepted Answer

22

Answer

Following order of operations: 3² = 9, then 9 × 2 = 18, then 4 + 18 = 22.

Question 5

What is 0.75 expressed as a fraction in simplest form?

Accepted Answer

3/4

Answer

0.75 = 75/100, which simplifies to 3/4 by dividing both numerator and denominator by 25.

STAAR Practice Test