Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 1 112 h = _____ min
- 2 725 m = _____ m (Give the answer in decimal.)
- 9 15 km = _____ m
- 6 38 kg = _____ g
(a)
1 h = 60 min
112 h =
112 x 60 = 5 min
1
112 h = 60 + 5 = 65 min
(b)
725 m =
28100 m = 0.28 m
2 m + 0.28 m = 2.28 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
6 kg = 6000 g
38 kg =
38 x 1000 = 375 g
6
38 kg
= 6000 + 375
= 6375 g
Answer(s): 65, 2.28, 9200, 6375