Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 940912 = 900000 + _____ + 900 + 12
- 412424 = _____ + 10000 + 2000 + 400 + 20 + 4
- 344597 = 300000 + 40000 + _____ + 500 + 90 + 7
- 491938 = 400000 + 90000 + 1000 + _____ + 30 + 8
(a)
940912 = 900000 + _____ + 900 + 12
940912 = 900000 + _____ + 912
940912 - 900000 - 912 = 40000
(b)
412424 = _____ + 10000 + 2000 + 400 + 20 + 4
412424 = _____ + 12424
412424 - 12424 = 400000
(c)
344597 = 300000 + 40000 + _____ + 500 + 90 + 7
344597 = 340000 + _____ + 597
344597 - 340000 - 597 = 4000
(d)
491938 = 400000 + 90000 + 1000 + _____ + 30 + 8
491938 = 491000 + _____ + 38
491938 - 491000 - 38 = 900
Answer(s): 40000, 400000, 4000, 900