Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 1 23 h = _____ min
- 9 750 m = _____ m (Give the answer in decimal.)
- 3 15 km = _____ m
- 2 15 kg = _____ g
(a)
1 h = 60 min
23 h =
23 x 60 = 40 min
1
23 h = 60 + 40 = 100 min
(b)
750 m =
14100 m = 0.14 m
9 m + 0.14 m = 9.14 m
(c)
1 km = 1000 m
3 km = 3000 m
15 km =
15 x 1000 = 200 m
3
15 km
= 3000 + 200
= 3200 m
(d)
1 kg = 1000 g
2 kg = 2000 g
15 kg =
15 x 1000 = 200 g
2
15 kg
= 2000 + 200
= 2200 g
Answer(s): 100, 9.14, 3200, 2200