ParaPro Number Sense and Basic Operations 4 — Questions and Answers
Question 1: A student says that 0.5 is greater than 0.50. Is the student correct?
- Yes, because 0.5 has fewer digits
- No, 0.5 and 0.50 are equal in value (Correct answer)
- Yes, because 0.50 has an extra zero making it larger
- No, 0.50 is greater because it has more digits
Correct answer: No, 0.5 and 0.50 are equal in value
Trailing zeros after a decimal point do not change the value, so 0.5 = 0.50.
Question 2: Which of the following represents the number 4,207 in expanded form?
- 4,000 + 200 + 7 (Correct answer)
- 4,000 + 20 + 7
- 400 + 200 + 7
- 4,000 + 207
Correct answer: 4,000 + 200 + 7
4,207 = 4,000 + 200 + 7, reflecting the thousands, hundreds, tens, and ones places.
Question 3: What is the remainder when 58 is divided by 7?
- 1
- 2
- 3
- 4 (Correct answer)
Correct answer: 4
7 × 8 = 56, and 58 − 56 = 2, so the remainder is 2.
Question 4: A classroom has 144 crayons to be shared equally among 12 students. How many crayons does each student get?
- 10
- 11
- 12 (Correct answer)
- 13
Correct answer: 12
144 ÷ 12 = 12 crayons per student.
Question 5: Which number is a composite number?
- 11
- 13
- 15 (Correct answer)
- 17
Correct answer: 15
15 is composite because it has factors other than 1 and itself (3 × 5 = 15).
Question 6: Round 3,846 to the nearest hundred.
- 3,800 (Correct answer)
- 3,900
- 4,000
- 3,850
Correct answer: 3,800
The tens digit is 4 (less than 5), so 3,846 rounds down to 3,800.
Question 7: Which expression shows the commutative property of addition?
- (2 + 3) + 4 = 2 + (3 + 4)
- 2 + 3 = 3 + 2 (Correct answer)
- 2 + 0 = 2
- 2 × (3 + 4) = 2×3 + 2×4
Correct answer: 2 + 3 = 3 + 2
The commutative property states that changing the order of addends does not change the sum: a + b = b + a.
ParaPro Number Sense and Basic Operations 4
A student says that 0.5 is greater than 0.50.
Is the student correct?