Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 644333 = 600000 + _____ + 300 + 33
- 427812 = _____ + 20000 + 7000 + 800 + 10 + 2
- 278148 = 200000 + 70000 + _____ + 100 + 40 + 8
- 389519 = 300000 + 80000 + 9000 + _____ + 10 + 9
(a)
644333 = 600000 + _____ + 300 + 33
644333 = 600000 + _____ + 333
644333 - 600000 - 333 = 44000
(b)
427812 = _____ + 20000 + 7000 + 800 + 10 + 2
427812 = _____ + 27812
427812 - 27812 = 400000
(c)
278148 = 200000 + 70000 + _____ + 100 + 40 + 8
278148 = 270000 + _____ + 148
278148 - 270000 - 148 = 8000
(d)
389519 = 300000 + 80000 + 9000 + _____ + 10 + 9
389519 = 389000 + _____ + 19
389519 - 389000 - 19 = 500
Answer(s): 44000, 400000, 8000, 500