NCERT Solutions for Class 5th Maths Chapter 5 Shikha and Sonu at the village weaving centre — Different Units but Same Measure
Book page 57–58 Updated on2026-09-19
Q1.
Fill in the blanks in the double number line. Top line (in cm): 100 cm, ____ cm, 400 cm, 500 cm, 700 cm. Bottom line (in m): 1 m, 2 m, ____ m, ____ m, ____ m.
The double number line printed on page 57.
Answer
Top blank = 200 cm. Bottom blanks = 4 m, 5 m and 7 m.
The two lines are lined up tick for tick. Every tick shows one length written twice — once in cm on top, once in m below.
The filled double number line. The red numbers are the ones you write in.
1 m = 100 cm 2 m = 2 × 100 = 200 cm (the top blank) 400 cm = 400 ÷ 100 = 4 m 500 cm = 500 ÷ 100 = 5 m 700 cm = 700 ÷ 100 = 7 m
Why it happens: One metre is made of 100 centimetres. So every metre on the bottom line needs 100 centimetres on the top line. Counting in metres is like counting in hundreds of centimetres.
Check it yourself: Cover the top line with your finger. Read the bottom line: 1, 2, 4, 5, 7 metres. Now add two zeros to each: 100, 200, 400, 500, 700. That is the top line exactly.
Q2.
Shikha and Sonu are measuring the lengths of saris and stoles in the village weaving centre. Find which measures represent the same sari or stole. (204 cm, 540 cm, 750 cm, 240 cm, 404 cm; 5 metre 40 cm, 2 metre 204 cm, 2 metre 4 cm, 2 metre 40 cm, 6 metre 150 cm)
Answer
All five pairs match. Here they are.
Measure in cm
Same as
Working
204 cm
2 metre 4 cm
200 + 4 = 204 cm ✓
540 cm
5 metre 40 cm
500 + 40 = 540 cm ✓
750 cm
6 metre 150 cm
600 + 150 = 750 cm ✓
240 cm
2 metre 40 cm
200 + 40 = 240 cm ✓
404 cm
2 metre 204 cm
200 + 204 = 404 cm ✓
Do it this way every time.
Take the right-hand measure. It is written in two parts, like 2 metre 4 cm.
Change the metres into centimetres. Multiply by 100. So 2 m = 200 cm.
Add the centimetres already there. 200 + 4 = 204 cm.
Look for that number on the left. 204 cm is there — so those two are the same cloth.
Why it happens: A length does not change when you write it differently. Cutting 204 cm of cloth is exactly the same as cutting 2 whole metres and then 4 more centimetres. Only the words change, not the cloth.
Watch out for this one: 6 metre 150 cm looks odd, because 150 cm is more than a whole metre. It is still correct — it just means 6 metres and then another metre and a half, which is 7 m 50 cm, or 750 cm. In the same way, 2 metre 204 cm = 4 m 4 cm = 404 cm.