Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 10 x 30 = 10 x _____ x 10
- 56 x 900 = 56 x _____ x 100
- 280 x 4000 = 280 x _____ x 1000
- 8600 x 60000 = 8600 x _____ x 10000
(a)
10 x 30 = 10 x _____ x 10
30 ÷ 10 = 3
(b)
56 x 900 = 56 x _____ x 100
900 ÷ 100 = 9
(c)
280 x 4000 = 280 x _____ x 1000
4000 ÷ 1000 = 4
(d)
8600 x 60000 = 8600 x _____ x 10000
60000 ÷ 10000 = 6
Answer(s): 3, 9, 4, 6