Achievement Test Standardized Achievement Mathematics 5

Question 1

A bag contains 4 red, 3 blue, and 5 green marbles. What is the probability of randomly selecting a blue marble?

Accepted Answer

3/12

Answer

Total marbles = 12; P(blue) = 3/12 = 1/4 (but 3/12 is the unreduced form listed as a choice).

Question 2

Evaluate: −3 × (−4) + (−6) ÷ 2

Accepted Answer

9

Answer

−3 × −4 = 12; −6 ÷ 2 = −3; 12 + (−3) = 9.

Question 3

The ratio of boys to girls in a class is 3:4. If there are 28 girls, how many boys are there?

Accepted Answer

21

Answer

If 4 parts = 28, then 1 part = 7; boys = 3 × 7 = 21.

Question 4

Which inequality represents 'x is at most 8'?

Accepted Answer

x ≤ 8

Answer

'At most 8' means x cannot exceed 8, so x ≤ 8.

Question 5

What is the slope of a line passing through (2, 5) and (6, 13)?

Accepted Answer

2

Answer

Slope = (13 − 5) ÷ (6 − 2) = 8 ÷ 4 = 2.

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