Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 2 13 h = _____ min
- 2 410 m = _____ m (Give the answer in decimal.)
- 6 12 km = _____ m
- 6 45 kg = _____ g
(a)
1 h = 60 min
13 h =
13 x 60 = 20 min
2
13 h = 120 + 20 = 140 min
(b)
410 m =
40100 m = 0.4 m
2 m + 0.4 m = 2.4 m
(c)
1 km = 1000 m
6 km = 6000 m
12 km =
12 x 1000 = 500 m
6
12 km
= 6000 + 500
= 6500 m
(d)
1 kg = 1000 g
6 kg = 6000 g
45 kg =
45 x 1000 = 800 g
6
45 kg
= 6000 + 800
= 6800 g
Answer(s): 140, 2.4, 6500, 6800