Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- _____ - 11 = 55
- _____ - 33 = 15
- _____ - 22 = 13
- _____ - 65 = 21
(a)
11 + 55 = 66
(b)
33 + 15 = 48
(c)
22 + 13 = 35
(d)
65 + 21 = 86
Answer(s): 66, 48, 35, 86