Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 1 23 h = _____ min
- 6 625 m = _____ m (Give the answer in decimal.)
- 8 15 km = _____ m
- 6 45 kg = _____ g
(a)
1 h = 60 min
23 h =
23 x 60 = 40 min
1
23 h = 60 + 40 = 100 min
(b)
625 m =
24100 m = 0.24 m
6 m + 0.24 m = 6.24 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
6 kg = 6000 g
45 kg =
45 x 1000 = 800 g
6
45 kg
= 6000 + 800
= 6800 g
Answer(s): 100, 6.24, 8200, 6800