📚 Class 2 Mathematics – Chapter 2: Addition (MCQs with Explanation)
🔹 1. Multiple Choice Questions
1️⃣ What is the sum of 7 + 5?
(a) 11
(b) 12
(c) 13
(d) 10
Answer: (b) 12
Explanation: Add 7 + 5 = 12.
2️⃣ Find the sum: 15 + 6
(a) 20
(b) 21
(c) 22
(d) 19
Answer: (b) 21
Explanation: 15 + 6 = 21
3️⃣ What is 24 + 17?
(a) 40
(b) 41
(c) 42
(d) 43
Answer: (b) 41
Explanation: Add ones first: 4 + 7 = 11 → write 1, carry 1
Tens: 2 + 1 + 1(carry) = 4 → sum = 41
4️⃣ Find the sum: 8 + 9 + 3
(a) 19
(b) 20
(c) 21
(d) 22
Answer: (b) 20
Explanation: Add 8 + 9 = 17, then 17 + 3 = 20
5️⃣ Which property is shown: 5 + 7 = 7 + 5?
(a) Associative Property
(b) Commutative Property
(c) Zero Property
(d) Distributive Property
Answer: (b) Commutative Property
Explanation: Changing the order of numbers does not change the sum.
6️⃣ Which property is shown: (5 + 3) + 2 = 5 + (3 + 2)?
(a) Commutative Property
(b) Associative Property
(c) Zero Property
(d) Identity Property
Answer: (b) Associative Property
Explanation: Grouping numbers differently does not change the sum.
7️⃣ What is the sum of 0 + 9?
(a) 0
(b) 9
(c) 10
(d) 1
Answer: (b) 9
Explanation: Adding 0 to any number does not change the number.
8️⃣ Add using a number line: 6 + 4 = ?
(a) 9
(b) 10
(c) 11
(d) 12
Answer: (b) 10
Explanation: Start at 6 on the number line and move 4 steps forward → 10
9️⃣ A shop has 23 pencils. 17 more pencils arrive. Total pencils = ?
(a) 40
(b) 41
(c) 39
(d) 42
Answer: (a) 40
Explanation: Add 23 + 17 = 40
🔟 Which of the following shows addition as repeated addition?
(a) 3 + 3 + 3 + 3
(b) 12 − 4
(c) 5 × 2
(d) Both (a) and (c)
Answer: (d) Both (a) and (c)
Explanation: Multiplication is repeated addition. 5 × 2 = 5 + 5
🔹 2. Quick Revision Tips
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Add small numbers first, then move to larger numbers.
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Use carry over when ones place > 9.
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Properties of Addition:
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Commutative: Order doesn’t matter (5 + 7 = 7 + 5)
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Associative: Grouping doesn’t matter ((5 + 3) + 2 = 5 + (3 + 2))
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Zero Property: Adding 0 doesn’t change the number
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Number Line Method: Helps in visualizing addition.
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Word Problems: Add quantities to find total.