Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 3 12 h = _____ min
- 6 750 m = _____ m (Give the answer in decimal.)
- 5 14 km = _____ m
- 7 25 kg = _____ g
(a)
1 h = 60 min
12 h =
12 x 60 = 30 min
3
12 h = 180 + 30 = 210 min
(b)
750 m =
14100 m = 0.14 m
6 m + 0.14 m = 6.14 m
(c)
1 km = 1000 m
5 km = 5000 m
14 km =
14 x 1000 = 250 m
5
14 km
= 5000 + 250
= 5250 m
(d)
1 kg = 1000 g
7 kg = 7000 g
25 kg =
25 x 1000 = 400 g
7
25 kg
= 7000 + 400
= 7400 g
Answer(s): 210, 6.14, 5250, 7400