Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 521 + 8 = ______
- 20 + 34 = _____
- 539 + 120 = _____
- 1670 + 814 = _____
(a)
521 + 8 = 529
(b)
20 + 34 = 54
(c)
539 + 120 = 659
(d)
1670 + 814 = 2484
Answer(s): 529, 54, 659, 2484