Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 420 + 4 = ______
- 29 + 30 = _____
- 430 + 222 = _____
- 1371 + 618 = _____
(a)
420 + 4 = 424
(b)
29 + 30 = 59
(c)
430 + 222 = 652
(d)
1371 + 618 = 1989
Answer(s): 424, 59, 652, 1989