Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)

(a) 83 x 7 + 3 x 83 = _____ x 83
(b) 15 x 7 + 7 x 3 + 7 x 2 = _____ x 7 + 3 x 7
(c) 226 x 16 - 6 x 226 = _____ x 226
(d) 11 x 6 + 6 x 6 - 3 x 6 = 17 x 6 - 6 x _____
(a)
83 x 7 + 3 x 83 = _____ x 83
7 x 83 + 3 x 83 = _____ x 83
(7 + 3) x 83 = _____ x 83

10 x 83 =  _____ x 83

(b)
15 x 7 + 7 x 3 + 7 x 2 = _____ x 7 + 3 x 7
(15 + 3 + 2) x 7 = = _____ x 7 + 3 x 7
20 x 7 = _____ x 7 + 3 x 7
20 x 7 - 3 x 7 = _____ x 7
(20 - 3) x 7 = _____ x 7

17 x 7 = _____ x 7

(c)
226 x 16 - 6 x 226 = _____ x 226
(16 - 6) x 226 = _____ x 226

10 x 226 = _____ x 226

(d)
11 x 6 + 6 x 6 - 3 x 6 = 17 x 6 - 6 x _____
(11 + 6 - 3) x 6 = 17 x 6 - _____ x 6
14 x 6 = 17 x 6 - _____ x 6
17 x 6 - 14 x 6 = _____ x 6
(17 - 14) x 6 = _____ x 6

3 x 6 = _____ x 6

Answer(s): 10, 17, 10, 3