Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 2 112 h = _____ min
- 3 34 m = _____ m (Give the answer in decimal.)
- 7 14 km = _____ m
- 6 15 kg = _____ g
(a)
1 h = 60 min
112 h =
112 x 60 = 5 min
2
112 h = 120 + 5 = 125 min
(b)
34 m =
75100 m = 0.75 m
3 m + 0.75 m = 3.75 m
(c)
1 km = 1000 m
7 km = 7000 m
14 km =
14 x 1000 = 250 m
7
14 km
= 7000 + 250
= 7250 m
(d)
1 kg = 1000 g
6 kg = 6000 g
15 kg =
15 x 1000 = 200 g
6
15 kg
= 6000 + 200
= 6200 g
Answer(s): 125, 3.75, 7250, 6200