Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 189 - 1 = _____
- 37 - 17 = _____
- 939 - 222 = _____
- 1497 - 130 = _____
(a)
189 - 1 = 188
(b)
37 - 17 = 20
(c)
939 - 222 = 717
(d)
1497 - 130 = 1367
Answer(s): 188, 20, 717, 1367