Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 3 12 h = _____ min
- 2 410 m = _____ m (Give the answer in decimal.)
- 9 12 km = _____ m
- 3 34 kg = _____ g
(a)
1 h = 60 min
12 h =
12 x 60 = 30 min
3
12 h = 180 + 30 = 210 min
(b)
410 m =
40100 m = 0.4 m
2 m + 0.4 m = 2.4 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
3 kg = 3000 g
34 kg =
34 x 1000 = 750 g
3
34 kg
= 3000 + 750
= 3750 g
Answer(s): 210, 2.4, 9500, 3750