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

(a) 64 x 5 + 2 x 64 = _____ x 64
(b) 12 x 5 + 5 x 2 + 5 x 2 = _____ x 5 + 10 x 5
(c) 283 x 10 - 8 x 283 = _____ x 283
(d) 12 x 4 + 3 x 4 - 6 x 4 = 17 x 4 - 4 x _____
(a)
64 x 5 + 2 x 64 = _____ x 64
5 x 64 + 2 x 64 = _____ x 64
(5 + 2) x 64 = _____ x 64

7 x 64 =  _____ x 64

(b)
12 x 5 + 5 x 2 + 5 x 2 = _____ x 5 + 10 x 5
(12 + 2 + 2) x 5 = = _____ x 5 + 10 x 5
16 x 5 = _____ x 5 + 10 x 5
16 x 5 - 10 x 5 = _____ x 5
(16 - 10) x 5 = _____ x 5

6 x 5 = _____ x 5

(c)
283 x 10 - 8 x 283 = _____ x 283
(10 - 8) x 283 = _____ x 283

2 x 283 = _____ x 283

(d)
12 x 4 + 3 x 4 - 6 x 4 = 17 x 4 - 4 x _____
(12 + 3 - 6) x 4 = 17 x 4 - _____ x 4
9 x 4 = 17 x 4 - _____ x 4
17 x 4 - 9 x 4 = _____ x 4
(17 - 9) x 4 = _____ x 4

8 x 4 = _____ x 4

Answer(s): 7, 6, 2, 8