Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 629109 = 600000 + _____ + 100 + 9
- 878146 = _____ + 70000 + 8000 + 100 + 40 + 6
- 865158 = 800000 + 60000 + _____ + 100 + 50 + 8
- 917593 = 900000 + 10000 + 7000 + _____ + 90 + 3
(a)
629109 = 600000 + _____ + 100 + 9
629109 = 600000 + _____ + 109
629109 - 600000 - 109 = 29000
(b)
878146 = _____ + 70000 + 8000 + 100 + 40 + 6
878146 = _____ + 78146
878146 - 78146 = 800000
(c)
865158 = 800000 + 60000 + _____ + 100 + 50 + 8
865158 = 860000 + _____ + 158
865158 - 860000 - 158 = 5000
(d)
917593 = 900000 + 10000 + 7000 + _____ + 90 + 3
917593 = 917000 + _____ + 93
917593 - 917000 - 93 = 500
Answer(s): 29000, 800000, 5000, 500