Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 3 23 h = _____ min
- 8 250 m = _____ m (Give the answer in decimal.)
- 4 15 km = _____ m
- 9 14 kg = _____ g
(a)
1 h = 60 min
23 h =
23 x 60 = 40 min
3
23 h = 180 + 40 = 220 min
(b)
250 m =
4100 m = 0.04 m
8 m + 0.04 m = 8.04 m
(c)
1 km = 1000 m
4 km = 4000 m
15 km =
15 x 1000 = 200 m
4
15 km
= 4000 + 200
= 4200 m
(d)
1 kg = 1000 g
9 kg = 9000 g
14 kg =
14 x 1000 = 250 g
9
14 kg
= 9000 + 250
= 9250 g
Answer(s): 220, 8.04, 4200, 9250