Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 2 14 h = _____ min
- 4 24 m = _____ m (Give the answer in decimal.)
- 7 12 km = _____ m
- 7 15 kg = _____ g
(a)
1 h = 60 min
14 h =
14 x 60 = 15 min
2
14 h = 120 + 15 = 135 min
(b)
24 m =
50100 m = 0.5 m
4 m + 0.5 m = 4.5 m
(c)
1 km = 1000 m
7 km = 7000 m
12 km =
12 x 1000 = 500 m
7
12 km
= 7000 + 500
= 7500 m
(d)
1 kg = 1000 g
7 kg = 7000 g
15 kg =
15 x 1000 = 200 g
7
15 kg
= 7000 + 200
= 7200 g
Answer(s): 135, 4.5, 7500, 7200