Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 1 23 h = _____ min
- 5 850 m = _____ m (Give the answer in decimal.)
- 4 14 km = _____ m
- 7 12 kg = _____ g
(a)
1 h = 60 min
23 h =
23 x 60 = 40 min
1
23 h = 60 + 40 = 100 min
(b)
850 m =
16100 m = 0.16 m
5 m + 0.16 m = 5.16 m
(c)
1 km = 1000 m
4 km = 4000 m
14 km =
14 x 1000 = 250 m
4
14 km
= 4000 + 250
= 4250 m
(d)
1 kg = 1000 g
7 kg = 7000 g
12 kg =
12 x 1000 = 500 g
7
12 kg
= 7000 + 500
= 7500 g
Answer(s): 100, 5.16, 4250, 7500