Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 700 + 70 + _____ = 773
- 4000 + _____ + 70 = 4770
- _____ + 70 + 3 = 7073
- 30000 + _____ + 6 = 34706
(a)
700 + 70 + _____ = 773
770 + _____ = 773
773 - 770 = 3
(b)
4000 + _____ + 70 = 4770
4070+ _____ = 4770
4770 - 4070 = 700
(c)
_____ + 70 + 3 = 7073
_____ + 73 = 7073
7073 - 73 = 7000
(d)
30000 + _____ + 6 = 34706
30006 + _____ = 34706
34706 - 30006 = 4700
Answer(s): 3, 700, 7000, 4700