ParaPro Number Sense and Basic Operations 1 — Questions and Answers
Question 1: A student needs to find 3/4 of 24. What is the correct answer?
- 6
- 12
- 18 (Correct answer)
- 21
Correct answer: 18
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?
- 1/4, 0.5, 1/2, 0.75 (Correct answer)
- 0.5, 1/4, 0.75, 1/2
- 1/4, 1/2, 0.5, 0.75
- 0.75, 0.5, 1/2, 1/4
Correct answer: 1/4, 0.5, 1/2, 0.75
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?
- 20
- 25
- 30 (Correct answer)
- 35
Correct answer: 30
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?
- Ask the student to use a calculator
- Have the student skip-count by 7s up to 56 (Correct answer)
- Tell the student the answer is wrong and move on
- Assign additional worksheets
Correct answer: Have the student skip-count by 7s up to 56
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?
- 4/8
- 6/15 (Correct answer)
- 3/8
- 4/9
Correct answer: 6/15
Multiplying both numerator and denominator of 2/5 by 3 gives 6/15, which is an equivalent fraction.
Question 6: A student is solving 248 + 376. Using place value, what is the correct sum?
- 614
- 624 (Correct answer)
- 624
- 634
Correct answer: 624
Adding ones: 8+6=14 (write 4, carry 1); tens: 4+7+1=12 (write 2, carry 1); hundreds: 2+3+1=6; total = 624.
ParaPro Number Sense and Basic Operations 1
A student needs to find 3/4 of 24.
What is the correct answer?