Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 456375 = 400000 + _____ + 300 + 75
- 492173 = _____ + 90000 + 2000 + 100 + 70 + 3
- 854215 = 800000 + 50000 + _____ + 200 + 10 + 5
- 342571 = 300000 + 40000 + 2000 + _____ + 70 + 1
(a)
456375 = 400000 + _____ + 300 + 75
456375 = 400000 + _____ + 375
456375 - 400000 - 375 = 56000
(b)
492173 = _____ + 90000 + 2000 + 100 + 70 + 3
492173 = _____ + 92173
492173 - 92173 = 400000
(c)
854215 = 800000 + 50000 + _____ + 200 + 10 + 5
854215 = 850000 + _____ + 215
854215 - 850000 - 215 = 4000
(d)
342571 = 300000 + 40000 + 2000 + _____ + 70 + 1
342571 = 342000 + _____ + 71
342571 - 342000 - 71 = 500
Answer(s): 56000, 400000, 4000, 500