Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 1 14 h = _____ min
- 2 320 m = _____ m (Give the answer in decimal.)
- 5 12 km = _____ m
- 8 15 kg = _____ g
(a)
1 h = 60 min
14 h =
14 x 60 = 15 min
1
14 h = 60 + 15 = 75 min
(b)
320 m =
15100 m = 0.15 m
2 m + 0.15 m = 2.15 m
(c)
1 km = 1000 m
5 km = 5000 m
12 km =
12 x 1000 = 500 m
5
12 km
= 5000 + 500
= 5500 m
(d)
1 kg = 1000 g
8 kg = 8000 g
15 kg =
15 x 1000 = 200 g
8
15 kg
= 8000 + 200
= 8200 g
Answer(s): 75, 2.15, 5500, 8200