Page 133 - Start Up Mathematics_4

Weight Example 7: Subtract 80 g 36 mg from

Example 6: Add 34 kg 25 g, 8 kg 132 g, 97 g 125 mg.
and 72 kg 325 g. Solution: g mg
Solution: kg g 0 11
1 15
1 1 9 7 1 2 5
3 4 0 2 5 – 8 0 0 3 6

8 1 3 2 1 7 0 8 9
+ 7 2 3 2 5 Answer: 17 g 89 mg

1 1 4 4 8 2

Answer: 114 kg 482 g

Capacity

Example 8: Add 2 kL 25 L, 8 kL 150 L and Example 9: Subtract 26 L 625 mL from
17 kL 315 L 54 L 560 mL.
Solution: kL L Solution: g mg

1 13
3
5 10
4
15
2 0 2 5 5 4 5 6 0
8 1 5 0 – 2 6 6 2 5
7 3 1 5 2 7 9 3 5
1 7 4 9 0 Answer: 27 L 935 mL

Answer: 17 kL 490 L

EXERCISE 9.2

1. Add the lengths.

(a) 4 m 20 cm, 12 m 6 cm and 18 m 50 cm
(b) 12 km 375 m and 15 km 260 m

(c) 22 cm 6 mm, 18 cm 4 mm and 6 cm 2 mm
(d) 82 km 164 m, 97 km 80 m and 30 km
(e) 54 m 31 cm, 8 m 90 cm and 120 m 42 cm

(f) 9 km, 6 km 30 m and 57 km 150 m
2. Add the weights.

(a) 4 g 60 mg, 19 g 175 mg and 42 g 625 mg
(b) 29 kg, 31 kg 950 g and 825 g
(c) 64 kg 172 g, 8 kg 400 g and 15 kg 215 g

(d) 44 g 122 mg, 75 g and 9 g 70 mg

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