Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 1 12 h = _____ min
- 7 24 m = _____ m (Give the answer in decimal.)
- 8 14 km = _____ m
- 4 14 kg = _____ g
(a)
1 h = 60 min
12 h =
12 x 60 = 30 min
1
12 h = 60 + 30 = 90 min
(b)
24 m =
50100 m = 0.5 m
7 m + 0.5 m = 7.5 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
4 kg = 4000 g
14 kg =
14 x 1000 = 250 g
4
14 kg
= 4000 + 250
= 4250 g
Answer(s): 90, 7.5, 8250, 4250