ParaPro Number Sense and Basic Operations

Question 1

A student needs to find 3/4 of 24. What is the correct answer?

Accepted Answer

18

Answer

To find 3/4 of 24, multiply 24 by 3 and divide by 4: (24 × 3) ÷ 4 = 72 ÷ 4 = 18.

Question 2

Which of the following shows the numbers in order from least to greatest: 0.5, 1/4, 0.75, 1/2?

Accepted Answer

1/4, 0.5, 1/2, 0.75

Answer

Converting to decimals: 1/4=0.25, 0.5=0.5, 1/2=0.5, 0.75=0.75, so the order is 1/4, 0.5, 1/2, 0.75.

Question 3

What is 15% of 200?

Accepted Answer

30

Answer

15% of 200 = 0.15 × 200 = 30.

Question 4

A student calculates 7 × 8 and gets 54. Which strategy would best help the paraprofessional correct this?

Accepted Answer

Have the student skip-count by 7s up to 56

Answer

Skip-counting by 7s builds conceptual understanding of multiplication and helps the student arrive at the correct answer of 56.

Question 5

Which of the following is equivalent to 2/5?

Accepted Answer

6/15

Answer

Multiplying both numerator and denominator of 2/5 by 3 gives 6/15, which is an equivalent fraction.

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