Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 420 + 5 = ______
- 21 + 30 = _____
- 331 + 422 = _____
- 4576 + 313 = _____
(a)
420 + 5 = 425
(b)
21 + 30 = 51
(c)
331 + 422 = 753
(d)
4576 + 313 = 4889
Answer(s): 425, 51, 753, 4889