Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 1 14 h = _____ min
- 9 120 m = _____ m (Give the answer in decimal.)
- 9 12 km = _____ m
- 9 14 kg = _____ g
(a)
1 h = 60 min
14 h =
14 x 60 = 15 min
1
14 h = 60 + 15 = 75 min
(b)
120 m =
5100 m = 0.05 m
9 m + 0.05 m = 9.05 m
(c)
1 km = 1000 m
9 km = 9000 m
12 km =
12 x 1000 = 500 m
9
12 km
= 9000 + 500
= 9500 m
(d)
1 kg = 1000 g
9 kg = 9000 g
14 kg =
14 x 1000 = 250 g
9
14 kg
= 9000 + 250
= 9250 g
Answer(s): 75, 9.05, 9500, 9250