PSSA Mathematics 5

Question 1

A data set has values: 4, 7, 9, 9, 11, 13. What is the median?

Accepted Answer

9

Answer

With 6 values, the median is the average of the 3rd and 4th: (9 + 9) ÷ 2 = 9.

Question 2

Which of the following is NOT a rational number?

Accepted Answer

√7

Answer

√7 cannot be expressed as a fraction of two integers, so it is irrational.

Question 3

If a recipe calls for 2½ cups of flour to make 24 cookies, how many cups are needed for 48 cookies?

Accepted Answer

5

Answer

48 cookies is double 24, so double the flour: 2½ × 2 = 5 cups.

Question 4

What is the greatest common factor (GCF) of 36 and 48?

Accepted Answer

12

Answer

Factors of 36: 1,2,3,4,6,9,12,18,36; factors of 48 include 12; GCF = 12.

Question 5

A line graph shows sales increasing from 200 units in January to 350 units in June. What is the percent increase?

Accepted Answer

75%

Answer

Percent increase = (350 − 200) ÷ 200 × 100 = 150 ÷ 200 × 100 = 75%.

PSSA - Pennsylvania System of School Assessment Practice Test