OSAT OSAT Elementary Mathematics Concepts 3

Question 1

Which property is illustrated by 5 × (2 + 3) = 5 × 2 + 5 × 3?

Accepted Answer

Distributive property

Answer

The distributive property states that a × (b + c) = a × b + a × c.

Question 2

A class of 28 students is divided into equal groups of 4. How many groups are there?

Accepted Answer

7

Answer

28 ÷ 4 = 7 equal groups.

Question 3

Which decimal is equivalent to 3/4?

Accepted Answer

0.75

Answer

3 ÷ 4 = 0.75, so 3/4 is equivalent to the decimal 0.75.

Question 4

What is the perimeter of a square with a side length of 7 inches?

Accepted Answer

28 inches

Answer

Perimeter of a square = 4 × side = 4 × 7 = 28 inches.

Question 5

A store has 120 pencils and sells 45. What percentage of the original supply remains?

Accepted Answer

62.5%

Answer

Remaining pencils = 120 − 45 = 75; 75/120 = 0.625 = 62.5%.

OSAT Test Practice Test