Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 542181 = _____ x 100000 + 42181
- 542181 = _____ x 10000 + 502181
- 542181 = _____ x 1000 + 540181
- 542181 = _____ x 100 + 542081
(a)
542181 = _____ x 100000 + 42181
542181 - 42181 = _____ x 100000
500000 = _____ x 100000
500000 ÷ 100000 = 5
(b)
542181 = _____ x 10000 + 502181
542181 - 502181 = _____ x 10000
40000 = _____ x 10000
40000 ÷ 10000 = 4
(c)
542181 = _____ x 1000 + 540181
542181 - 540181 = _____ x 1000
2000 ÷ 1000 = 2
(d)
542181 = _____ x 100 + 542081
542181 - 542081 = _____ x 100
100 ÷ 100 = 1
Answer(s): 5, 4, 2, 1