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Swapping terms doesn't change sum (Commutative property of addition)
Last updated at May 26, 2025 by Teachoo
Swapping and Grouping (Commutative & Associative Properties)
Class 7 (Ganit Prakash)
Chapter 2 Class 7 - Arithmetic Expressions (Ganita Prakash)
- Simple Expressions
- Comparing Expressions
- Comparing Expressions without fully calculating
- Reading and Evaluating Complex Expressions
- Terms in Expressions
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Swapping and Grouping (Commutative & Associative Properties)
- Writing expressions from story
- Figure it out - Page 34
- Removing Brackets - I
- Tinker the Terms - I
- Removing Brackets - II
- Tinker the Terms - II
- Figure it out (Page 41, 42)
- Figure it out (Page 42, 43, 44)
Transcript
Swapping terms doesn't change sum (Commutative property of addition) Let’s look at 12 + 7 Now, 12 + 7 = 19 What if we swapped terms? And, 7 + 12 = 19 Thus, swapping terms doesn’t change the sum This is true for any expression Like Value 6 × 5 – 8 = 30 – 8 = 22 Value –8 + 6 × 5 = –8 + 30 = 30 – 8 = 22 This is actually called Commutative Property of Addition, where
