Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 3 15 h = _____ min
- 8 210 m = _____ m (Give the answer in decimal.)
- 8 15 km = _____ m
- 4 25 kg = _____ g
(a)
1 h = 60 min
15 h =
15 x 60 = 12 min
3
15 h = 180 + 12 = 192 min
(b)
210 m =
20100 m = 0.2 m
8 m + 0.2 m = 8.2 m
(c)
1 km = 1000 m
8 km = 8000 m
15 km =
15 x 1000 = 200 m
8
15 km
= 8000 + 200
= 8200 m
(d)
1 kg = 1000 g
4 kg = 4000 g
25 kg =
25 x 1000 = 400 g
4
25 kg
= 4000 + 400
= 4400 g
Answer(s): 192, 8.2, 8200, 4400