Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 1 23 h = _____ min
- 5 310 m = _____ m (Give the answer in decimal.)
- 9 12 km = _____ m
- 9 35 kg = _____ g
(a)
1 h = 60 min
23 h =
23 x 60 = 40 min
1
23 h = 60 + 40 = 100 min
(b)
310 m =
30100 m = 0.3 m
5 m + 0.3 m = 5.3 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
35 kg =
35 x 1000 = 600 g
9
35 kg
= 9000 + 600
= 9600 g
Answer(s): 100, 5.3, 9500, 9600