Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 1 14 h = _____ min
- 4 120 m = _____ m (Give the answer in decimal.)
- 8 12 km = _____ m
- 2 12 kg = _____ g
(a)
1 h = 60 min
14 h =
14 x 60 = 15 min
1
14 h = 60 + 15 = 75 min
(b)
120 m =
5100 m = 0.05 m
4 m + 0.05 m = 4.05 m
(c)
1 km = 1000 m
8 km = 8000 m
12 km =
12 x 1000 = 500 m
8
12 km
= 8000 + 500
= 8500 m
(d)
1 kg = 1000 g
2 kg = 2000 g
12 kg =
12 x 1000 = 500 g
2
12 kg
= 2000 + 500
= 2500 g
Answer(s): 75, 4.05, 8500, 2500