Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- _____ - 55 = 66
- _____ - 53 = 35
- _____ - 28 = 13
- _____ - 53 = 21
(a)
55 + 66 = 121
(b)
53 + 35 = 88
(c)
28 + 13 = 41
(d)
53 + 21 = 74
Answer(s): 121, 88, 41, 74