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\ 10-Nov-2025 Bharat Arora Proof-8 Reader’s Sign _______________________ Date __________

Mental Maths

Choose the correct option. Century
21 st
Skills #Critical Thinking
1. 2 m = ____________ mm.

a. 2000 b. 200 c. 20000 d. 20
2. If 3 km 500 m is subtracted from 10 km, then the result is

a. 65 km b. 6 km 500 m c. 5 km 600 m d. 56 km

3. If 8 L of juice is distributed out of 10 L 500 mL of juice, the quantity of juice left is
___________ mL.
a. 2500 b. 1400 c. 1600 d. none

4. Rohan, Vinit and Mukesh purchased 1 kg 500 g of grapes. 275 g of grapes rotted
after 2 days. Now, the weight of fresh grapes is

a. 600 g b. 800 g c. 1 kg 225 g d. 500 g

5. Rajesh purchases a pencil whose length is 18 cm. After 4 days, his pencil's length is
6 cm 4 mm. What length has been used up by Rajesh?
a. 11 cm 3 mm b. 11 cm 6 mm c. 6 cm 11 mm d. 11 cm 8 mm

HOtS

21 st
Century #Computational Thinking
Skills
Find the longest and the 1 cm

shortest route in this treasure 1 cm
hunt. You can go around the

obstacles but cannot jump STArT
over them. You can only
walk on the yellow tiles and

not on the grass. Can you
find the length of your route
in centimetres? Look for the

1 cm clue in the map.

167
Measurement