Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 722 + 7 = ______
- 26 + 30 = _____
- 337 + 320 = _____
- 2778 + 811 = _____
(a)
722 + 7 = 729
(b)
26 + 30 = 56
(c)
337 + 320 = 657
(d)
2778 + 811 = 3589
Answer(s): 729, 56, 657, 3589