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Question 6 - Tinker the Terms - I - Chapter 2 Class 7 - Arithmetic Expressions (Ganita Prakash)
Last updated at August 10, 2026 by Teachoo
Class 7 (Ganita Prakash 1, 2 & old NCERT)
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
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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
Question 6 Using only reasoning of how terms change their values, fill the blanks to make the expressions on either side of the equality (=) equal. (a) 423 + ____ = 419 + ____ We notice Left side increases by 423 Right side increases by only 419 (that’s 4 less) To balance it, we need to add 4 more on the right to make it equal. So, our equation now becomes 423 + ____ = 419 + ____ + 4 Now, we can add any number both sides, lets add 10 423 + 10 = 419 + 10 + 4 423 + 10 = 419 + 14 Question 6 Using only reasoning of how terms change their values, fill the blanks to make the expressions on either side of the equality (=) equal. (b) 207 – 68 = 210 – ____ We notice Right side starts 3 more (210 vs. 207) So, to keep the same result, we must also subtract 3 more from the right side. So: 207 – 68 = 210 – 71 Because 71 is 68 + 3
