Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 3 23 h = _____ min
- 2 650 m = _____ m (Give the answer in decimal.)
- 7 15 km = _____ m
- 7 58 kg = _____ g
(a)
1 h = 60 min
23 h =
23 x 60 = 40 min
3
23 h = 180 + 40 = 220 min
(b)
650 m =
12100 m = 0.12 m
2 m + 0.12 m = 2.12 m
(c)
1 km = 1000 m
7 km = 7000 m
15 km =
15 x 1000 = 200 m
7
15 km
= 7000 + 200
= 7200 m
(d)
1 kg = 1000 g
7 kg = 7000 g
58 kg =
58 x 1000 = 625 g
7
58 kg
= 7000 + 625
= 7625 g
Answer(s): 220, 2.12, 7200, 7625