Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 3 112 h = _____ min
- 3 425 m = _____ m (Give the answer in decimal.)
- 7 15 km = _____ m
- 7 14 kg = _____ g
(a)
1 h = 60 min
112 h =
112 x 60 = 5 min
3
112 h = 180 + 5 = 185 min
(b)
425 m =
16100 m = 0.16 m
3 m + 0.16 m = 3.16 m
(c)
1 km = 1000 m
7 km = 7000 m
15 km =
15 x 1000 = 200 m
7
15 km
= 7000 + 200
= 7200 m
(d)
1 kg = 1000 g
7 kg = 7000 g
14 kg =
14 x 1000 = 250 g
7
14 kg
= 7000 + 250
= 7250 g
Answer(s): 185, 3.16, 7200, 7250