Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 3 23 h = _____ min
- 4 725 m = _____ m (Give the answer in decimal.)
- 9 12 km = _____ m
- 4 34 kg = _____ g
(a)
1 h = 60 min
23 h =
23 x 60 = 40 min
3
23 h = 180 + 40 = 220 min
(b)
725 m =
28100 m = 0.28 m
4 m + 0.28 m = 4.28 m
(c)
1 km = 1000 m
9 km = 9000 m
12 km =
12 x 1000 = 500 m
9
12 km
= 9000 + 500
= 9500 m
(d)
1 kg = 1000 g
4 kg = 4000 g
34 kg =
34 x 1000 = 750 g
4
34 kg
= 4000 + 750
= 4750 g
Answer(s): 220, 4.28, 9500, 4750