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

(a) 18 x 3 + 5 x 18 = _____ x 18
(b) 18 x 9 + 9 x 2 + 9 x 2 = _____ x 9 + 8 x 9
(c) 193 x 17 - 3 x 193 = _____ x 193
(d) 13 x 2 + 8 x 2 - 3 x 2 = 20 x 2 - 2 x _____
(a)
18 x 3 + 5 x 18 = _____ x 18
3 x 18 + 5 x 18 = _____ x 18
(3 + 5) x 18 = _____ x 18

8 x 18 =  _____ x 18

(b)
18 x 9 + 9 x 2 + 9 x 2 = _____ x 9 + 8 x 9
(18 + 2 + 2) x 9 = = _____ x 9 + 8 x 9
22 x 9 = _____ x 9 + 8 x 9
22 x 9 - 8 x 9 = _____ x 9
(22 - 8) x 9 = _____ x 9

14 x 9 = _____ x 9

(c)
193 x 17 - 3 x 193 = _____ x 193
(17 - 3) x 193 = _____ x 193

14 x 193 = _____ x 193

(d)
13 x 2 + 8 x 2 - 3 x 2 = 20 x 2 - 2 x _____
(13 + 8 - 3) x 2 = 20 x 2 - _____ x 2
18 x 2 = 20 x 2 - _____ x 2
20 x 2 - 18 x 2 = _____ x 2
(20 - 18) x 2 = _____ x 2

2 x 2 = _____ x 2

Answer(s): 8, 14, 14, 2