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Question 1 - Page 58 - Hundredth - Chapter 3 Class 7 - A peek beyond the Point (Ganita Prakash)
Last updated at June 9, 2025 by Teachoo
Class 7 (Ganit Prakash)
Chapter 3 Class 7 - A peek beyond the Point (Ganita Prakash)
- Fractions - Quick Revision
- Need for a smaller unit
- Tenth
-
Hundredth
- Figure it out - Page 58
- Decimals
- Fractions to Decimals
- Reading and Writing Decimals
- Unit Conversion - Weight, Length, Money
- Decimal in number line
- Finding greater decimal
- Closest decimal
- Addition and Subtraction of Decimals
- Decimal Sequences
- Estimating Sums and Differences
- More on Decimal System
- Figure it out - Page 78, 79, 80
Transcript
Question 1 – Page 58 What is the difference: 15 3/10 4/100− 2 6/10 8/100 ?These are mixed fractions, converting them into normal fractions 15 4/10 7/100=15+3/10+4/100=(15 × 100 + 3 × 10 + 4)/100=𝟏𝟓𝟑𝟒/𝟏𝟎𝟎 2 6/10 8/100=2+6/10+8/100=(2 × 100 + 6 × 10 + 8)/100=𝟐𝟔𝟖/𝟏𝟎𝟎 Now, finding difference 𝟏𝟓𝟑𝟒/𝟏𝟎𝟎− 𝟐𝟔𝟖/𝟏𝟎𝟎 Since denominator is same, we subtract numerator 𝟏𝟓𝟑𝟒/𝟏𝟎𝟎− 𝟐𝟔𝟖/𝟏𝟎𝟎 =(1534 − 268)/100 =𝟏𝟐𝟔𝟔/𝟏𝟎𝟎 =(1200 + 66)/100 =1200/100+66/100 =12+66/100 =𝟏𝟐 𝟔𝟔/𝟏𝟎𝟎 =12+60/100+6/100 =12+6/10+6/100 =𝟏𝟐 𝟔/𝟏𝟎 𝟔/𝟏𝟎𝟎
