ParaPro Number Sense and Basic Operations 2 — Questions and Answers
Question 1: A paraprofessional is helping a student understand place value. In the number 4,637, what is the value of the digit 6?
- 6
- 60
- 600 (Correct answer)
- 6,000
Correct answer: 600
In 4,637, the digit 6 is in the hundreds place, so its value is 6 × 100 = 600.
Question 2: What is the least common multiple (LCM) of 4 and 6?
- 2
- 12 (Correct answer)
- 18
- 24
Correct answer: 12
The multiples of 4 are 4, 8, 12… and of 6 are 6, 12…; the smallest common multiple is 12.
Question 3: A student divides 135 ÷ 5. What is the correct quotient?
- 23
- 25
- 27 (Correct answer)
- 29
Correct answer: 27
135 ÷ 5 = 27 because 5 × 27 = 135.
Question 4: Which of the following is a prime number?
- 9
- 15
- 17 (Correct answer)
- 21
Correct answer: 17
17 is a prime number because it has exactly two factors: 1 and 17.
Question 5: A student needs to subtract 4.7 from 10. What is the correct answer?
- 5.3 (Correct answer)
- 5.7
- 6.3
- 6.7
Correct answer: 5.3
10 − 4.7 = 5.3; aligning decimals and subtracting gives 9.10 − 4.70 = 5.30.
Question 6: A student must estimate 492 × 6. Using rounding, the best estimate is:
- 2,400
- 2,700
- 3,000 (Correct answer)
- 3,200
Correct answer: 3,000
Rounding 492 to 500 and multiplying by 6 gives 500 × 6 = 3,000.
ParaPro Number Sense and Basic Operations 2
A paraprofessional is helping a student understand place value.
In the number 4,637, what is the value of the digit 6?