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

(a) 52 x 6 + 6 x 52 = _____ x 52
(b) 17 x 3 + 3 x 6 + 3 x 2 = _____ x 3 + 5 x 3
(c) 117 x 10 - 7 x 117 = _____ x 117
(d) 16 x 7 + 1 x 7 - 4 x 7 = 17 x 7 - 7 x _____
(a)
52 x 6 + 6 x 52 = _____ x 52
6 x 52 + 6 x 52 = _____ x 52
(6 + 6) x 52 = _____ x 52

12 x 52 =  _____ x 52

(b)
17 x 3 + 3 x 6 + 3 x 2 = _____ x 3 + 5 x 3
(17 + 6 + 2) x 3 = = _____ x 3 + 5 x 3
25 x 3 = _____ x 3 + 5 x 3
25 x 3 - 5 x 3 = _____ x 3
(25 - 5) x 3 = _____ x 3

20 x 3 = _____ x 3

(c)
117 x 10 - 7 x 117 = _____ x 117
(10 - 7) x 117 = _____ x 117

3 x 117 = _____ x 117

(d)
16 x 7 + 1 x 7 - 4 x 7 = 17 x 7 - 7 x _____
(16 + 1 - 4) x 7 = 17 x 7 - _____ x 7
13 x 7 = 17 x 7 - _____ x 7
17 x 7 - 13 x 7 = _____ x 7
(17 - 13) x 7 = _____ x 7

4 x 7 = _____ x 7

Answer(s): 12, 20, 3, 4