Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 821 + 8 = ______
- 22 + 30 = _____
- 331 + 427 = _____
- 1573 + 215 = _____
(a)
821 + 8 = 829
(b)
22 + 30 = 52
(c)
331 + 427 = 758
(d)
1573 + 215 = 1788
Answer(s): 829, 52, 758, 1788