Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 1 13 h = _____ min
- 4 520 m = _____ m (Give the answer in decimal.)
- 6 15 km = _____ m
- 2 14 kg = _____ g
(a)
1 h = 60 min
13 h =
13 x 60 = 20 min
1
13 h = 60 + 20 = 80 min
(b)
520 m =
25100 m = 0.25 m
4 m + 0.25 m = 4.25 m
(c)
1 km = 1000 m
6 km = 6000 m
15 km =
15 x 1000 = 200 m
6
15 km
= 6000 + 200
= 6200 m
(d)
1 kg = 1000 g
2 kg = 2000 g
14 kg =
14 x 1000 = 250 g
2
14 kg
= 2000 + 250
= 2250 g
Answer(s): 80, 4.25, 6200, 2250