Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 221 + 1 = ______
- 20 + 38 = _____
- 131 + 323 = _____
- 3171 + 110 = _____
(a)
221 + 1 = 222
(b)
20 + 38 = 58
(c)
131 + 323 = 454
(d)
3171 + 110 = 3281
Answer(s): 222, 58, 454, 3281