Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 1 112 h = _____ min
- 2 850 m = _____ m (Give the answer in decimal.)
- 4 12 km = _____ m
- 8 78 kg = _____ g
(a)
1 h = 60 min
112 h =
112 x 60 = 5 min
1
112 h = 60 + 5 = 65 min
(b)
850 m =
16100 m = 0.16 m
2 m + 0.16 m = 2.16 m
(c)
1 km = 1000 m
4 km = 4000 m
12 km =
12 x 1000 = 500 m
4
12 km
= 4000 + 500
= 4500 m
(d)
1 kg = 1000 g
8 kg = 8000 g
78 kg =
78 x 1000 = 875 g
8
78 kg
= 8000 + 875
= 8875 g
Answer(s): 65, 2.16, 4500, 8875