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Example 18 - Chapter 2 Class 7 - Arithmetic Expressions (Ganita Prakash)
Last updated at May 26, 2025 by Teachoo
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
- 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
Example 18 Find an effective way of evaluating 97 × 25. To multiply or divide, we always try to get as many zero’s as possible Finding 97 × 25 = (100 – 3) × 25 = 100 × 25 – 3 × 25 = 2500 – 75 = 2425
