Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 2 15 h = _____ min
- 7 320 m = _____ m (Give the answer in decimal.)
- 3 15 km = _____ m
- 8 12 kg = _____ g
(a)
1 h = 60 min
15 h =
15 x 60 = 12 min
2
15 h = 120 + 12 = 132 min
(b)
320 m =
15100 m = 0.15 m
7 m + 0.15 m = 7.15 m
(c)
1 km = 1000 m
3 km = 3000 m
15 km =
15 x 1000 = 200 m
3
15 km
= 3000 + 200
= 3200 m
(d)
1 kg = 1000 g
8 kg = 8000 g
12 kg =
12 x 1000 = 500 g
8
12 kg
= 8000 + 500
= 8500 g
Answer(s): 132, 7.15, 3200, 8500