©G Dear 2008 – Not to be sold/Free to use General Mathematics Preliminary Basic Algebra Collecting Like Terms Stage 6 - Year 11 Press Ctrl-A ©G Dear 2008 – Not to be sold/Free to use

Collecting Like Terms 1/5 Like Terms can be Added or Subtracted. 2a & 3a 2m & 2n  a & 2a2   4p & 7p 2m2 & 3m2   Click on the Like Terms

Collecting Like Terms 2/5 Like Terms can be Added or Subtracted. 5b & 3a 21n & 2n   a2 & 2a2  4p & 7q 2m & 3m2   Click on the Unlike Terms

Collecting Like Terms 3/5 Adding Like Terms = + Unlike Terms + = + Unlike terms can’t be added.

Collecting Like Terms 4/5 Subtracting Like Terms = - Unlike Terms - = - Unlike terms can’t be subtracted.

Collecting Like Terms 5/5 2a + 3a = 5a b + 2b + 3a = 6a 3p – 2p + 6p = 7p m + 2m - 3m = 5p – 2p + 2q = 3p – 2q 12w – 6w + 2w = 8w m + 2n – 3p = m + 2n – 3p -5z + 2z + z = -2z 6a + 5a + 6 = 11a + 6