Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 408 - 1 = _____
- 36 - 15 = _____
- 838 - 223 = _____
- 1698 - 930 = _____
(a)
408 - 1 = 407
(b)
36 - 15 = 21
(c)
838 - 223 = 615
(d)
1698 - 930 = 768
Answer(s): 407, 21, 615, 768