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Worksheet on Length Conversion
Last updated at June 10, 2025 by Teachoo
Class 7 (Ganita Prakash & 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
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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
Transcript
Worksheet on Length Conversion Question 1 - Convert 245 mm in cm Question 2 - Convert 186 cm into m Question 3 - Convert 1899 m into km Question 4 - Express as metres using decimals - 2 m 45 cm Now, let’s solve them one by one Question 1 Convert 245 mm in cm 245 mm = 245 × 1 mm = 245 × 1/10 cm = 245/10 cm = 24.5 cm ∴ 245mm = 24.5 cm Question 2 Convert 186 cm into m 186 cm = 186 × 1 cm = 186 × 1/100 m = 186/100 m = 1.86 m Question 3 Convert 1899 m into km 1899 m = 1899 × 1 m = 1899 × 1/1000 km = 1899/1000 km = 1.899 km Question 4 Express as metres using decimals - 2 m 45 cm 2 m 45 cm = 2 m + 45 cm = 2 m + 45 × 1 cm = 2 m + 45 × 1/100 m = 2 m + 𝟒𝟓/𝟏𝟎𝟎 m = ("2 + " 45/100)m = ((2 × 100 + 45 )/100)m = 245/100 m = 2.45 m As 100 cm = 1 m 1 cm = 1/100 cm
