Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 1 23 h = _____ min
- 5 34 m = _____ m (Give the answer in decimal.)
- 3 12 km = _____ m
- 4 58 kg = _____ g
(a)
1 h = 60 min
23 h =
23 x 60 = 40 min
1
23 h = 60 + 40 = 100 min
(b)
34 m =
75100 m = 0.75 m
5 m + 0.75 m = 5.75 m
(c)
1 km = 1000 m
3 km = 3000 m
12 km =
12 x 1000 = 500 m
3
12 km
= 3000 + 500
= 3500 m
(d)
1 kg = 1000 g
4 kg = 4000 g
58 kg =
58 x 1000 = 625 g
4
58 kg
= 4000 + 625
= 4625 g
Answer(s): 100, 5.75, 3500, 4625