Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 2 23 h = _____ min
- 3 220 m = _____ m (Give the answer in decimal.)
- 2 15 km = _____ m
- 8 35 kg = _____ g
(a)
1 h = 60 min
23 h =
23 x 60 = 40 min
2
23 h = 120 + 40 = 160 min
(b)
220 m =
10100 m = 0.1 m
3 m + 0.1 m = 3.1 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
35 kg =
35 x 1000 = 600 g
8
35 kg
= 8000 + 600
= 8600 g
Answer(s): 160, 3.1, 2200, 8600