Addition of Decimals
Last updated at June 10, 2025 by Teachoo
Addition and Subtraction of Decimals
Addition of Decimals
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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
Addition of decimals To add decimals, First we convert them into fractions and then we cannot the final fraction into decimal Let’s take an example Add 0.08 + 9.831 + 0.8956 0.08 + 9.831 + 0.8956 = 008/100 + 9831/1000 + 08956/10000 = 8/100 + 9831/1000 + 8956/10000 = 8/100 × 100/100 + 9831/1000 × 10/10 + 8956/10000 = 800/10000 + 98310/10000 + 8956/10000 = (800 + 98310 + 8956)/10000 = (98310 + 8956 + 800)/10000 = 108066/10000 = 10.8066 Add 49.59 + 53. 481 + 1000.003 49.59 + 53.481 + 1000.003 = 4959/100 + 53481/1000 + 1000003/1000 = (4959 )/100 × 10/10 + 53481/1000 + 1000003/1000 = (4959 )/100 + 53481/1000 + 1000003/1000 = (49540 + 53481 + 1000003)/1000 = (1000003 + 49590 + 53481)/1000 = 1103074/1000 = 1103.074
