Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 509 - 7 = _____
- 34 - 12 = _____
- 937 - 123 = _____
- 7798 - 535 = _____
(a)
509 - 7 = 502
(b)
34 - 12 = 22
(c)
937 - 123 = 814
(d)
7798 - 535 = 7263
Answer(s): 502, 22, 814, 7263