Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 3 12 h = _____ min
- 5 620 m = _____ m (Give the answer in decimal.)
- 8 14 km = _____ m
- 6 38 kg = _____ g
(a)
1 h = 60 min
12 h =
12 x 60 = 30 min
3
12 h = 180 + 30 = 210 min
(b)
620 m =
30100 m = 0.3 m
5 m + 0.3 m = 5.3 m
(c)
1 km = 1000 m
8 km = 8000 m
14 km =
14 x 1000 = 250 m
8
14 km
= 8000 + 250
= 8250 m
(d)
1 kg = 1000 g
6 kg = 6000 g
38 kg =
38 x 1000 = 375 g
6
38 kg
= 6000 + 375
= 6375 g
Answer(s): 210, 5.3, 8250, 6375