Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 221 + 1 = ______
- 21 + 36 = _____
- 238 + 421 = _____
- 3573 + 412 = _____
(a)
221 + 1 = 222
(b)
21 + 36 = 57
(c)
238 + 421 = 659
(d)
3573 + 412 = 3985
Answer(s): 222, 57, 659, 3985