Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 221 + 2 = ______
- 20 + 35 = _____
- 432 + 423 = _____
- 3378 + 611 = _____
(a)
221 + 2 = 223
(b)
20 + 35 = 55
(c)
432 + 423 = 855
(d)
3378 + 611 = 3989
Answer(s): 223, 55, 855, 3989