Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 200 + 20 + _____ = 226
- 3000 + _____ + 20 = 3820
- _____ + 60 + 3 = 5063
- 80000 + _____ + 8 = 84408
(a)
200 + 20 + _____ = 226
220 + _____ = 226
226 - 220 = 6
(b)
3000 + _____ + 20 = 3820
3020+ _____ = 3820
3820 - 3020 = 800
(c)
_____ + 60 + 3 = 5063
_____ + 63 = 5063
5063 - 63 = 5000
(d)
80000 + _____ + 8 = 84408
80008 + _____ = 84408
84408 - 80008 = 4400
Answer(s): 6, 800, 5000, 4400