AlgebraicConventions Press Ctrl-A ©2009 G Dear – Not to be sold/Free to use Stage 4 Years 7 & 8

Algebraic Conventions – Multiplication When multiplying, leave out the times sign. 2 x a =2a 2 x a + 3 =2a x 3 x a x b=6ab 3 x a x b =3ab 4 x b =4b m x p x r =mpr 2 x a + 3 x b =2a + 3b w x y x z =wyz

Algebraic Conventions – Multiplication 1 x a =a 2 x m x 1 =2m 2 x 1 x a x 1=2a 1 x a x b =ab 1 x b =b 1 x p x q =pq 1 x a + 1 x b =a + b w x 1 x v =wv When multiplying by ‘1’ leave out ‘1’.

Algebraic Conventions – Multiplication a x a =a2a2 2 x m x m =2m 2 a x b x a x c=a 2 bc m x m x m =m3m3 b x b =b2b2 p x q x q =pq 2 a x a + b x b =a 2 + b 2 w x w x v =w2vw2v When multiplying a pronumeral by itself we write it index form,

Algebraic Conventions – Division When dividing we write it as a fraction. 2 ÷ a = 2/a2/a (2 + a) ÷ 3 = 2+a / 3 6a 2 ÷ c = 6a 2 / c 3a ÷ b = 3a / b 4 ÷ b = 4/b4/b p ÷ q = p/qp/q (2 + a) ÷ (3 – b) = (2+a) / (3-b) 3w ÷ 2v = 3w / 2v