Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 996428 = 900000 + _____ + 400 + 28
- 418854 = _____ + 10000 + 8000 + 800 + 50 + 4
- 716878 = 700000 + 10000 + _____ + 800 + 70 + 8
- 172171 = 100000 + 70000 + 2000 + _____ + 70 + 1
(a)
996428 = 900000 + _____ + 400 + 28
996428 = 900000 + _____ + 428
996428 - 900000 - 428 = 96000
(b)
418854 = _____ + 10000 + 8000 + 800 + 50 + 4
418854 = _____ + 18854
418854 - 18854 = 400000
(c)
716878 = 700000 + 10000 + _____ + 800 + 70 + 8
716878 = 710000 + _____ + 878
716878 - 710000 - 878 = 6000
(d)
172171 = 100000 + 70000 + 2000 + _____ + 70 + 1
172171 = 172000 + _____ + 71
172171 - 172000 - 71 = 100
Answer(s): 96000, 400000, 6000, 100