Question 3 - Figure it out - Page 78, 79, 80 - Chapter 3 Class 7 - A peek beyond the Point (Ganita Prakash)
Last updated at June 10, 2025 by Teachoo
Figure it out - Page 78, 79, 80
Question 1
Important
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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
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Figure it out - Page 78, 79, 80
Transcript
Question 3 What decimal number does each letter represent in the number line below? Since between 6.4 and 6.5, the number line is divided into 4 parts Therefore, Length of each part = (𝟔.𝟓 − 𝟔.𝟒)/𝟒 = 0.1/4 = (1/10)/4 = 1/(10 × 4) = 𝟏/𝟒𝟎 Converting into decimal Since 4 × 25 = 100, we multiply and divide by 25 = 𝟏/𝟒𝟎 ×𝟐𝟓/𝟐𝟓 = (1 × 25)/(40 × 25) = 𝟐𝟓/𝟏𝟎𝟎𝟎 = 0025/1000 = 0.025 Thus, after each line, there is 0.025 added So, 6.4 + 0.025 = 6.425 6.425 + 0.025 = 6.450 6.450 + 0.025 = 6.475 6.475 + 0.025 = 6.500 Thus, our number line is Thus, a = 6.450 b = 6.525 c = 6.550
