Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 522 + 7 = ______
- 20 + 32 = _____
- 336 + 421 = _____
- 3172 + 410 = _____
(a)
522 + 7 = 529
(b)
20 + 32 = 52
(c)
336 + 421 = 757
(d)
3172 + 410 = 3582
Answer(s): 529, 52, 757, 3582