NCDAP Mathematical Operations & Problem Solving 2

Question 1

A store sells notebooks for $2.75 each. If a student buys 8 notebooks and pays with a $25 bill, how much change will they receive?

Accepted Answer

$3.00

Answer

8 × $2.75 = $22.00, and $25.00 − $22.00 = $3.00 in change.

Question 2

What is the value of 3² + 4²?

Accepted Answer

25

Answer

3² = 9 and 4² = 16, so 9 + 16 = 25.

Question 3

Simplify: 18 ÷ (3 + 3) × 2

Accepted Answer

6

Answer

Following order of operations: 18 ÷ 6 × 2 = 3 × 2 = 6.

Question 4

A recipe calls for 2½ cups of flour. If you want to make 1.5 times the recipe, how many cups of flour do you need?

Accepted Answer

3¾

Answer

2.5 × 1.5 = 3.75 = 3¾ cups of flour.

Question 5

Which of the following is equivalent to 0.625?

Accepted Answer

5/8

Answer

0.625 = 625/1000, which simplifies to 5/8.

(NCDAP) North Carolina Diagnostic Placement Test Practice Test