Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- _____ - 44 = 99
- _____ - 55 = 11
- _____ - 22 = 12
- _____ - 31 = 25
(a)
44 + 99 = 143
(b)
55 + 11 = 66
(c)
22 + 12 = 34
(d)
31 + 25 = 56
Answer(s): 143, 66, 34, 56