Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 668648 = 600000 + _____ + 600 + 48
- 388336 = _____ + 80000 + 8000 + 300 + 30 + 6
- 988777 = 900000 + 80000 + _____ + 700 + 70 + 7
- 267731 = 200000 + 60000 + 7000 + _____ + 30 + 1
(a)
668648 = 600000 + _____ + 600 + 48
668648 = 600000 + _____ + 648
668648 - 600000 - 648 = 68000
(b)
388336 = _____ + 80000 + 8000 + 300 + 30 + 6
388336 = _____ + 88336
388336 - 88336 = 300000
(c)
988777 = 900000 + 80000 + _____ + 700 + 70 + 7
988777 = 980000 + _____ + 777
988777 - 980000 - 777 = 8000
(d)
267731 = 200000 + 60000 + 7000 + _____ + 30 + 1
267731 = 267000 + _____ + 31
267731 - 267000 - 31 = 700
Answer(s): 68000, 300000, 8000, 700