Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 342450 = 300000 + _____ + 400 + 50
- 471498 = _____ + 70000 + 1000 + 400 + 90 + 8
- 123691 = 100000 + 20000 + _____ + 600 + 90 + 1
- 623173 = 600000 + 20000 + 3000 + _____ + 70 + 3
(a)
342450 = 300000 + _____ + 400 + 50
342450 = 300000 + _____ + 450
342450 - 300000 - 450 = 42000
(b)
471498 = _____ + 70000 + 1000 + 400 + 90 + 8
471498 = _____ + 71498
471498 - 71498 = 400000
(c)
123691 = 100000 + 20000 + _____ + 600 + 90 + 1
123691 = 120000 + _____ + 691
123691 - 120000 - 691 = 3000
(d)
623173 = 600000 + 20000 + 3000 + _____ + 70 + 3
623173 = 623000 + _____ + 73
623173 - 623000 - 73 = 100
Answer(s): 42000, 400000, 3000, 100