Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 1 12 h = _____ min
- 9 350 m = _____ m (Give the answer in decimal.)
- 4 12 km = _____ m
- 3 12 kg = _____ g
(a)
1 h = 60 min
12 h =
12 x 60 = 30 min
1
12 h = 60 + 30 = 90 min
(b)
350 m =
6100 m = 0.06 m
9 m + 0.06 m = 9.06 m
(c)
1 km = 1000 m
4 km = 4000 m
12 km =
12 x 1000 = 500 m
4
12 km
= 4000 + 500
= 4500 m
(d)
1 kg = 1000 g
3 kg = 3000 g
12 kg =
12 x 1000 = 500 g
3
12 kg
= 3000 + 500
= 3500 g
Answer(s): 90, 9.06, 4500, 3500