Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 1 112 h = _____ min
- 2 510 m = _____ m (Give the answer in decimal.)
- 4 15 km = _____ m
- 3 34 kg = _____ g
(a)
1 h = 60 min
112 h =
112 x 60 = 5 min
1
112 h = 60 + 5 = 65 min
(b)
510 m =
50100 m = 0.5 m
2 m + 0.5 m = 2.5 m
(c)
1 km = 1000 m
4 km = 4000 m
15 km =
15 x 1000 = 200 m
4
15 km
= 4000 + 200
= 4200 m
(d)
1 kg = 1000 g
3 kg = 3000 g
34 kg =
34 x 1000 = 750 g
3
34 kg
= 3000 + 750
= 3750 g
Answer(s): 65, 2.5, 4200, 3750