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Grouping terms differently doesn't change sum (Associative 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
Grouping terms differently doesn't change sum (Associative property of addition)Let’s look at –7 + 10 – 11 Writing in terms, and calculating ( (-7) + 10 ) + (–11) = (10 – 7) + (–11) = 3 + (–11) = 3 – 11 = –8. What if we group differently? Like (-7) + (10 + (–11)) = (-7) + (10 – 11) = –7 – 1 = –8. So, the sum is the same This is actually called Associative Property of Addition, where
