Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 3 23 h = _____ min
- 5 45 m = _____ m (Give the answer in decimal.)
- 2 12 km = _____ m
- 5 34 kg = _____ g
(a)
1 h = 60 min
23 h =
23 x 60 = 40 min
3
23 h = 180 + 40 = 220 min
(b)
45 m =
80100 m = 0.8 m
5 m + 0.8 m = 5.8 m
(c)
1 km = 1000 m
2 km = 2000 m
12 km =
12 x 1000 = 500 m
2
12 km
= 2000 + 500
= 2500 m
(d)
1 kg = 1000 g
5 kg = 5000 g
34 kg =
34 x 1000 = 750 g
5
34 kg
= 5000 + 750
= 5750 g
Answer(s): 220, 5.8, 2500, 5750