Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 3 14 h = _____ min
- 4 720 m = _____ m (Give the answer in decimal.)
- 9 15 km = _____ m
- 7 78 kg = _____ g
(a)
1 h = 60 min
14 h =
14 x 60 = 15 min
3
14 h = 180 + 15 = 195 min
(b)
720 m =
35100 m = 0.35 m
4 m + 0.35 m = 4.35 m
(c)
1 km = 1000 m
9 km = 9000 m
15 km =
15 x 1000 = 200 m
9
15 km
= 9000 + 200
= 9200 m
(d)
1 kg = 1000 g
7 kg = 7000 g
78 kg =
78 x 1000 = 875 g
7
78 kg
= 7000 + 875
= 7875 g
Answer(s): 195, 4.35, 9200, 7875