Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 720 + 9 = ______
- 20 + 37 = _____
- 135 + 223 = _____
- 3475 + 813 = _____
(a)
720 + 9 = 729
(b)
20 + 37 = 57
(c)
135 + 223 = 358
(d)
3475 + 813 = 4288
Answer(s): 729, 57, 358, 4288