Page 133 - New Medley 4 Semester 2 PDF (Merged)

Subtraction of Measurements

To subtract one measurement from another, write different units in separate
columns. Then, subtract the smaller unit first and if required, borrow from

the larger unit.

Example 8: Subtract:

(a) 10 km 200 m from 31 km 600 m

(b) 42 m 46 cm from 60 m 75 cm

(c) 125 kg 720 g from 200 kg

(d) 68 L 675 mL from 100 L 35 mL

Solution: (a) km m
3 1 6 0 0

– 1 0 2 0 0

2 1 4 0 0 Ans. 21 km 400 m

(b) m cm

6 0 7 5

– 4 2 4 6

1 8 2 9 Ans. 18 m 29 cm

(c) kg g
1 9 9 10 0 0

2 0 0 0 0 0 Here, 200 kg = 199 kg and 1000 g

– 1 2 5 7 2 0

7 4 2 8 0 Ans. 74 kg 280 g

(d) L mL
9 9 10 3

1 0 0 0 3 5 Here, 100 L 35 mL = 99 L 1035 mL

– 6 8 6 7 5

3 1 3 6 0 Ans. 31 L 360 mL

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