Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 1 12 h = _____ min
- 2 410 m = _____ m (Give the answer in decimal.)
- 6 14 km = _____ m
- 6 18 kg = _____ g
(a)
1 h = 60 min
12 h =
12 x 60 = 30 min
1
12 h = 60 + 30 = 90 min
(b)
410 m =
40100 m = 0.4 m
2 m + 0.4 m = 2.4 m
(c)
1 km = 1000 m
6 km = 6000 m
14 km =
14 x 1000 = 250 m
6
14 km
= 6000 + 250
= 6250 m
(d)
1 kg = 1000 g
6 kg = 6000 g
18 kg =
18 x 1000 = 125 g
6
18 kg
= 6000 + 125
= 6125 g
Answer(s): 90, 2.4, 6250, 6125