Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 2 14 h = _____ min
- 3 225 m = _____ m (Give the answer in decimal.)
- 9 12 km = _____ m
- 4 25 kg = _____ g
(a)
1 h = 60 min
14 h =
14 x 60 = 15 min
2
14 h = 120 + 15 = 135 min
(b)
225 m =
8100 m = 0.08 m
3 m + 0.08 m = 3.08 m
(c)
1 km = 1000 m
9 km = 9000 m
12 km =
12 x 1000 = 500 m
9
12 km
= 9000 + 500
= 9500 m
(d)
1 kg = 1000 g
4 kg = 4000 g
25 kg =
25 x 1000 = 400 g
4
25 kg
= 4000 + 400
= 4400 g
Answer(s): 135, 3.08, 9500, 4400