Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 857789 = _____ x 100000 + 57789
- 857789 = _____ x 10000 + 807789
- 857789 = _____ x 1000 + 850789
- 857789 = _____ x 100 + 857089
(a)
857789 = _____ x 100000 + 57789
857789 - 57789 = _____ x 100000
800000 = _____ x 100000
800000 ÷ 100000 = 8
(b)
857789 = _____ x 10000 + 807789
857789 - 807789 = _____ x 10000
50000 = _____ x 10000
50000 ÷ 10000 = 5
(c)
857789 = _____ x 1000 + 850789
857789 - 850789 = _____ x 1000
7000 ÷ 1000 = 7
(d)
857789 = _____ x 100 + 857089
857789 - 857089 = _____ x 100
700 ÷ 100 = 7
Answer(s): 8, 5, 7, 7