Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 754579 = 700000 + _____ + 500 + 79
- 819224 = _____ + 10000 + 9000 + 200 + 20 + 4
- 786748 = 700000 + 80000 + _____ + 700 + 40 + 8
- 572197 = 500000 + 70000 + 2000 + _____ + 90 + 7
(a)
754579 = 700000 + _____ + 500 + 79
754579 = 700000 + _____ + 579
754579 - 700000 - 579 = 54000
(b)
819224 = _____ + 10000 + 9000 + 200 + 20 + 4
819224 = _____ + 19224
819224 - 19224 = 800000
(c)
786748 = 700000 + 80000 + _____ + 700 + 40 + 8
786748 = 780000 + _____ + 748
786748 - 780000 - 748 = 6000
(d)
572197 = 500000 + 70000 + 2000 + _____ + 90 + 7
572197 = 572000 + _____ + 97
572197 - 572000 - 97 = 100
Answer(s): 54000, 800000, 6000, 100