Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- _____ - 66 = 88
- _____ - 44 = 15
- _____ - 28 = 19
- _____ - 63 = 21
(a)
66 + 88 = 154
(b)
44 + 15 = 59
(c)
28 + 19 = 47
(d)
63 + 21 = 84
Answer(s): 154, 59, 47, 84