Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 920 + 4 = ______
- 25 + 31 = _____
- 139 + 420 = _____
- 3270 + 310 = _____
(a)
920 + 4 = 924
(b)
25 + 31 = 56
(c)
139 + 420 = 559
(d)
3270 + 310 = 3580
Answer(s): 924, 56, 559, 3580