Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 1 14 h = _____ min
- 3 450 m = _____ m (Give the answer in decimal.)
- 8 15 km = _____ m
- 7 12 kg = _____ g
(a)
1 h = 60 min
14 h =
14 x 60 = 15 min
1
14 h = 60 + 15 = 75 min
(b)
450 m =
8100 m = 0.08 m
3 m + 0.08 m = 3.08 m
(c)
1 km = 1000 m
8 km = 8000 m
15 km =
15 x 1000 = 200 m
8
15 km
= 8000 + 200
= 8200 m
(d)
1 kg = 1000 g
7 kg = 7000 g
12 kg =
12 x 1000 = 500 g
7
12 kg
= 7000 + 500
= 7500 g
Answer(s): 75, 3.08, 8200, 7500