Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 3 12 h = _____ min
- 2 210 m = _____ m (Give the answer in decimal.)
- 2 15 km = _____ m
- 8 34 kg = _____ g
(a)
1 h = 60 min
12 h =
12 x 60 = 30 min
3
12 h = 180 + 30 = 210 min
(b)
210 m =
20100 m = 0.2 m
2 m + 0.2 m = 2.2 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
8 kg = 8000 g
34 kg =
34 x 1000 = 750 g
8
34 kg
= 8000 + 750
= 8750 g
Answer(s): 210, 2.2, 2200, 8750