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2. The length of a board is 2 metres. Sonu has a decorative border sticker which is 20 cm
long. How many such stickers are needed to cover the length of the board completely?

20 cm

0 m 1 m 2 m

3. Convert the following:

a. 2455 cm into m and cm b. 26 L 5 mL into mL

c. 5377 m into km and m d. 40 kg 25 g into g

e. 2008 mg into g and mg f. 3141 g into kg and g

g. 14339 mL into L and mL h. 15 g 40 mg into mg

4. Add the following:

a. 204 kg 26 g, 29 kg 138 g and 31 kg 4 g

b. 55 m 26 cm, 18 m 26 cm and 51 m 9 cm

c. 249 g 69 mg, 3860 mg and 4 kg

d. 14 L 263 mL, 28 L 27 mL and 9 L 248 mL
5. Subtract the following:

a. 13 kg 209 g from 20 kg b. 5 L 405 mL from 18 L 22 mL

c. 25 cm 4 mm from 1 m d. 54 L 23 mL from 100 L

e. 402 g 24 mg from 2 kg 19 mg f. 34 km 314 m from 50 km 2 m

6. Rajat, Amit, Sujoy and Mayank wanted to have their heights measured with a

measuring tape. Amit’s height is 1720 mm. Rajat’s height is 2 cm 4 mm more than
Sujoy’s but 4 cm 2 mm less than Mayank’s. The total height of Sujoy and Amit is

3 m 40 cm. Find the heights of all of them. Also, list them in ascending order of their
heights in cm and mm.

7. A shop sells 36 L 756 mL of juice every day. The neighbouring juice shop sells 5364 mL

less. How much juice does the neighbouring shop sell every day?

8. A granary has 345 kg 234 g of wheat. 199 kg 564 g of wheat is distributed by the
government. How much wheat is left?

166 Mathematics 4