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Worksheet on Estimating Sums and Differences - in Decimals
Last updated at July 25, 2026 by Teachoo
Class 7 (Ganita Prakash 1, 2 & old NCERT)
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
- Teachoo Questions - MCQs
- Teachoo Questions - Mix
- Teachoo Questions - Assertion Reasoning
- Teachoo Questions - Case Based
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Transcript
Worksheet on Estimating Sums and Differences - in DecimalsQuestion 1 For the sum of 25.93603259 and 8.20, use estimation to find the range where the sum will lie. Question 2 Estimate the sum of 14.8 and 9.3 What is the estimated range for the sum? b) What is the actual sum? Is it within your estimated range? Question 3 Estimate the sum of 45.15 and 6.9 What is the estimated range for the sum? b) What is the actual sum? Is it within your estimated range? Question 4 Estimate the difference between 22.4 and 7.8. What is the estimated range for the difference? b) What is the actual difference? Is it within your estimated range? Question 5 Estimate the difference between 50.25 and 19.9. What is the estimated range for the difference? b) What is the actual difference? Is it within your estimated range? Question 6 (Word Problem) Anjali has a ribbon that is 15.2 meters long. She cuts off a piece that is 4.9 meters long. First, estimate the range for the length of the remaining ribbon. b) Then, calculate the actual length. Is your answer reasonable?
