Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 3 13 h = _____ min
- 2 720 m = _____ m (Give the answer in decimal.)
- 2 15 km = _____ m
- 5 14 kg = _____ g
(a)
1 h = 60 min
13 h =
13 x 60 = 20 min
3
13 h = 180 + 20 = 200 min
(b)
720 m =
35100 m = 0.35 m
2 m + 0.35 m = 2.35 m
(c)
1 km = 1000 m
2 km = 2000 m
15 km =
15 x 1000 = 200 m
2
15 km
= 2000 + 200
= 2200 m
(d)
1 kg = 1000 g
5 kg = 5000 g
14 kg =
14 x 1000 = 250 g
5
14 kg
= 5000 + 250
= 5250 g
Answer(s): 200, 2.35, 2200, 5250