Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 1 13 h = _____ min
- 3 350 m = _____ m (Give the answer in decimal.)
- 3 12 km = _____ m
- 9 25 kg = _____ g
(a)
1 h = 60 min
13 h =
13 x 60 = 20 min
1
13 h = 60 + 20 = 80 min
(b)
350 m =
6100 m = 0.06 m
3 m + 0.06 m = 3.06 m
(c)
1 km = 1000 m
3 km = 3000 m
12 km =
12 x 1000 = 500 m
3
12 km
= 3000 + 500
= 3500 m
(d)
1 kg = 1000 g
9 kg = 9000 g
25 kg =
25 x 1000 = 400 g
9
25 kg
= 9000 + 400
= 9400 g
Answer(s): 80, 3.06, 3500, 9400