Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 2 12 h = _____ min
- 9 620 m = _____ m (Give the answer in decimal.)
- 8 12 km = _____ m
- 2 34 kg = _____ g
(a)
1 h = 60 min
12 h =
12 x 60 = 30 min
2
12 h = 120 + 30 = 150 min
(b)
620 m =
30100 m = 0.3 m
9 m + 0.3 m = 9.3 m
(c)
1 km = 1000 m
8 km = 8000 m
12 km =
12 x 1000 = 500 m
8
12 km
= 8000 + 500
= 8500 m
(d)
1 kg = 1000 g
2 kg = 2000 g
34 kg =
34 x 1000 = 750 g
2
34 kg
= 2000 + 750
= 2750 g
Answer(s): 150, 9.3, 8500, 2750