Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 2 112 h = _____ min
- 8 25 m = _____ m (Give the answer in decimal.)
- 9 14 km = _____ m
- 2 35 kg = _____ g
(a)
1 h = 60 min
112 h =
112 x 60 = 5 min
2
112 h = 120 + 5 = 125 min
(b)
25 m =
40100 m = 0.4 m
8 m + 0.4 m = 8.4 m
(c)
1 km = 1000 m
9 km = 9000 m
14 km =
14 x 1000 = 250 m
9
14 km
= 9000 + 250
= 9250 m
(d)
1 kg = 1000 g
2 kg = 2000 g
35 kg =
35 x 1000 = 600 g
2
35 kg
= 2000 + 600
= 2600 g
Answer(s): 125, 8.4, 9250, 2600