Addition
ICSE · Class 2 · Mathematics
Complete topic list for Addition in ICSE Class 2 Mathematics. Key concepts, sub-topics, and what to focus on for board exams.
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Topics in Addition
What is Addition?
- Addition means combining two or more numbers to find the total.
- The symbol for addition is '+' (plus).
- The answer in addition is called the **sum**.
Properties of Addition
- Changing the order of numbers does not change the sum. (Commutative Property)
- Adding 0 to any number gives the same number.
- Adding 1 to any number gives the next number (successor).
Addition Without Carry Over
- When the sum of digits in any column is less than 10, no carry over is needed.
- Add ones first, then tens, then hundreds.
Addition With Carry Over
- When the sum of digits in a column is 10 or more, we carry over the extra to the next column.
- 10 ones = 1 ten, so we carry 1 to the tens column.
- 10 tens = 1 hundred, so we carry 1 to the hundreds column.
Key Concepts
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