Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 2 12 h = _____ min
- 9 720 m = _____ m (Give the answer in decimal.)
- 9 15 km = _____ m
- 8 34 kg = _____ g
(a)
1 h = 60 min
12 h =
12 x 60 = 30 min
2
12 h = 120 + 30 = 150 min
(b)
720 m =
35100 m = 0.35 m
9 m + 0.35 m = 9.35 m
(c)
1 km = 1000 m
9 km = 9000 m
15 km =
15 x 1000 = 200 m
9
15 km
= 9000 + 200
= 9200 m
(d)
1 kg = 1000 g
8 kg = 8000 g
34 kg =
34 x 1000 = 750 g
8
34 kg
= 8000 + 750
= 8750 g
Answer(s): 150, 9.35, 9200, 8750