Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 1 112 h = _____ min
- 6 420 m = _____ m (Give the answer in decimal.)
- 4 14 km = _____ m
- 7 34 kg = _____ g
(a)
1 h = 60 min
112 h =
112 x 60 = 5 min
1
112 h = 60 + 5 = 65 min
(b)
420 m =
20100 m = 0.2 m
6 m + 0.2 m = 6.2 m
(c)
1 km = 1000 m
4 km = 4000 m
14 km =
14 x 1000 = 250 m
4
14 km
= 4000 + 250
= 4250 m
(d)
1 kg = 1000 g
7 kg = 7000 g
34 kg =
34 x 1000 = 750 g
7
34 kg
= 7000 + 750
= 7750 g
Answer(s): 65, 6.2, 4250, 7750