2. 1 Like Terms Press Ctrl-A ©2009 G Dear – Not to be sold/Free to use Stage 4 Years 7 & 8

3. 2 Like Terms Add/Subtract (1/5) Like Terms Only Like Terms can be added or subtracted. Circle the Like Terms 3a, 5b, 7a Hint Which have the same letters. Hint m 2 = mm m 3 = mmm 4v, -5v, 6u 4m 2, 5m 3, 6m 2 2m 3, 3m 3, 6m 2

4. 3 Like Terms Add/Subtract (2/5) Like Terms Only Like Terms can be added or subtracted. Subtract Subtract the Like Terms a) 3a + 4a = 7a b) 5t + 4t = 9t c) 13z + 5z = 18z d) 5w + 5w = 10w e) 5z + 7z = 12z Click on Disks To reveal answers

5. 4 Like Terms Add/Subtract (3/5) Like Terms Only Like Terms can be added or subtracted. Add Add the Like Terms a) 11a - 4a = 7a b) 5t - 4t = t c) 13z - 5z = 8z d) 5w - 5w = 0 e) 5z - 7z = -2z

6. 5 Like Terms Add/Subtract (4/5) Like Terms Only Like Terms can be added or subtracted. AddSubtract Add and Subtract the Like Terms a) 3a + 4a + 2a = 9a b) 15s – 4s + 3s = 14s c) 13x + 5y – 4x – 3y = 9x + 2y d) 5w + 5v + w – 7v = 6w – 2v

7. 6 Like Terms Add/Subtract (5/5) Like Terms Only Like Terms can be added or subtracted. AddSubtract Add and Subtract the Like Terms a) 3ab + 4ab = 7ab b) 5st – 4st = st c) 8yz - 5zy = 3yz d) 5vw - 5wv = 0 e) 7mn – nm = 6mn