AzM2 Grade 3 Mathematics 2 — Questions and Answers
Question 1: What is 85 - 47?
- 38 (Correct answer)
- 42
- 48
- 32
Correct answer: 38
85 - 47: regroup (borrow from tens), 15 - 7 = 8, 7 - 4 = 3. Answer: 38.
85 - 47: ones: can't subtract 7 from 5, so borrow 1 ten from 8 tens. Now: 15 - 7 = 8 (ones), 7 - 4 = 3 (tens). Result: 38. Answer A is correct. Answer B (42) is 87 - 45 error. Answer C (48) is 95 - 47. Regrouping in subtraction is a core 3rd-grade skill.
Question 2: Which number sentence shows the commutative property of multiplication?
- 5 × 3 = 15
- 3 × 5 = 5 × 3 (Correct answer)
- 5 × (2 × 3) = (5 × 2) × 3
- 5 × 0 = 0
Correct answer: 3 × 5 = 5 × 3
The commutative property states that changing the order of factors does not change the product: 3 × 5 = 5 × 3.
The commutative property of multiplication: a × b = b × a (order doesn't matter). Answer B (3 × 5 = 5 × 3) shows two expressions with the same factors in different orders equaling the same product. Answer A is just a fact. Answer C shows the associative property (grouping). Answer D shows the zero property. Answer B is correct.
Question 3: Sam has 24 stickers. He puts them equally into 3 bags. How many stickers are in each bag?
- 6
- 7
- 8 (Correct answer)
- 9
Correct answer: 8
24 ÷ 3 = 8 stickers per bag.
Equal sharing: 24 ÷ 3 = 8. Think: 3 × 8 = 24. Answer C is correct. This is a division as equal groups problem. 3 × 6 = 18 (not 24), 3 × 7 = 21 (not 24), 3 × 9 = 27 (not 24). Knowing multiplication facts makes division facts easier.
Question 4: Which number is EVEN?
- 37
- 53
- 42 (Correct answer)
- 71
Correct answer: 42
An even number ends in 0, 2, 4, 6, or 8. 42 ends in 2, so it is even.
Even numbers are divisible by 2 and end in 0, 2, 4, 6, or 8. 42 ends in 2 → even (C). 37 ends in 7 → odd. 53 ends in 3 → odd. 71 ends in 1 → odd. Answer C is correct. The ones digit determines even/odd.
Question 5: A bookshelf has 5 shelves. Each shelf holds 8 books. How many books can the bookshelf hold in all?
- 13
- 35
- 40 (Correct answer)
- 45
Correct answer: 40
5 × 8 = 40 books total.
5 shelves × 8 books per shelf = 40 books (C). This is a multiplication (equal groups) problem. Answer A (13) adds instead of multiplies. Answer B (35) = 5 × 7. Answer D (45) = 5 × 9. Multiplication as repeated addition: 8 + 8 + 8 + 8 + 8 = 40. Answer C is correct.
Question 6: What is the value of the digit 6 in the number 364?
- 6
- 60 (Correct answer)
- 600
- 16
Correct answer: 60
In 364, the digit 6 is in the tens place, so its value is 6 × 10 = 60.
In 364: 3 is in the hundreds place (value = 300), 6 is in the tens place (value = 60), 4 is in the ones place (value = 4). The value of 6 in 364 is 60. Answer B is correct. Answer A (6) confuses digit with value. Answer C (600) would be the value if 6 were in the hundreds place. Place value means each position represents a different power of 10.
AzM2 Grade 3 Mathematics 2
What is 85 - 47?