Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 2 23 h = _____ min
- 6 225 m = _____ m (Give the answer in decimal.)
- 5 12 km = _____ m
- 4 14 kg = _____ g
(a)
1 h = 60 min
23 h =
23 x 60 = 40 min
2
23 h = 120 + 40 = 160 min
(b)
225 m =
8100 m = 0.08 m
6 m + 0.08 m = 6.08 m
(c)
1 km = 1000 m
5 km = 5000 m
12 km =
12 x 1000 = 500 m
5
12 km
= 5000 + 500
= 5500 m
(d)
1 kg = 1000 g
4 kg = 4000 g
14 kg =
14 x 1000 = 250 g
4
14 kg
= 4000 + 250
= 4250 g
Answer(s): 160, 6.08, 5500, 4250