Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 1 112 h = _____ min
- 3 120 m = _____ m (Give the answer in decimal.)
- 7 12 km = _____ m
- 5 35 kg = _____ g
(a)
1 h = 60 min
112 h =
112 x 60 = 5 min
1
112 h = 60 + 5 = 65 min
(b)
120 m =
5100 m = 0.05 m
3 m + 0.05 m = 3.05 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
5 kg = 5000 g
35 kg =
35 x 1000 = 600 g
5
35 kg
= 5000 + 600
= 5600 g
Answer(s): 65, 3.05, 7500, 5600