Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 1 13 h = _____ min
- 9 525 m = _____ m (Give the answer in decimal.)
- 9 14 km = _____ m
- 6 12 kg = _____ g
(a)
1 h = 60 min
13 h =
13 x 60 = 20 min
1
13 h = 60 + 20 = 80 min
(b)
525 m =
20100 m = 0.2 m
9 m + 0.2 m = 9.2 m
(c)
1 km = 1000 m
9 km = 9000 m
14 km =
14 x 1000 = 250 m
9
14 km
= 9000 + 250
= 9250 m
(d)
1 kg = 1000 g
6 kg = 6000 g
12 kg =
12 x 1000 = 500 g
6
12 kg
= 6000 + 500
= 6500 g
Answer(s): 80, 9.2, 9250, 6500