2. LO To understand the order of operations (BIDMAS) 10-Jan-16 Starter Activity Look at the four questions. In your pairs, decide which answer is correct. You must give a reason for your answer.

3. Starter Activity – Think / Pair / Share 6 + 7 x 2 = 2 x 6 + 10 ÷ 2 = 35 – 20 ÷ 5 + 6 = 24 + 8 ÷ 4 + 7 = 20 or 26? 11 or 17? 37 or 9? 33 or 15

4. BIDMAS – A quick Reminder BIDMASBIDMAS RACKETS NDICES IVISION ULTIPLICATION DDITION UBTRACTION

5. Mini Whiteboard Activity

6. Can you help Chief Clancy Wiggum work out who? Someone in Springfield has robbed Kwik – e- mart?

7. You will have only 15 seconds to solve each clue…………..

8. Solve 3 + 4 x10

9. Solve (3 + 4) x 10

10. Solve: 5 +2 x 3 + 1

11. Solve: (5 +2) x 3 + 1

12. Solve: (5 +2) x (3 + 1)

13. Solve: 5 +2 x (3 + 1)

14. Solve: 6 + 9 ÷ 3

15. Solve: (6 + 9) ÷ 3

16. Solve: 12 – 3 + 25

17. Solve : 4 +{(7 - 4) x 2} 2

18. Now add up all the answers to identify the thief from the following gallery…..

19. 89 170 209 184 219 276 478 134 Homer SimpsonDr. Hibbert Side Show Bob Smithers Ned Flanders Krusty Grandpa Patty

20. Did you correctly identify the robber?

22. 3 + 4 x10 = 43 (3 + 4) x 10 = 70 5+2x3+1 = 12 (5+2)x3+1 = 22 (5+2)x(3+1) = 28 Solutions 5 + 2 x (3 + 1)= 13 6 + 9 ÷ 3 = 9 (6 + 9) ÷ 3 = 5 12 -3 + 5 2 = 34 2 2 +6 2 = 40 Total of all solutions: 276

23. Support - Task Decide whether each of the statements below is true or false. If you think the statement is false you must say what you think the correct answer is. (a)2 + 3 x 5 = 25 (b)4 x 5 + 2 = 22 (c)15 – 2 x 6 = 3 (d)3 + 4 x 2 = 14 (e)20 – 10 ÷ 2 = 15 (f)8 ÷ 2 + 3 = 7 (g)6 - 1 + 3 = 2

24. CalculationTarget 2 + 3 x 4 + 529 2 + 3 x 4 + 545 2 x 3 + 4 x 526 2 x 3 + 4 x 546 2 x 3 + 4 x 550 2 x 3 + 4 x 570 2 + 3 x 4 2 80 2 + 3 x 4 2 146 2 + 3 x 4 2 196 2 + 3 x 4 2 400 Main Task Show how you can reach each target by adding brackets to the calculations.

25. Extension Task Look at the diagrams opposite and the calculations and solutions. on the next page. Underneath each diagram write the calculation / calculations that it represents. You should also write the solution. Some of the solutions are missing, you must work these out.

26. CalculationsSolution 144 5.5 49 48 14 3.5

27. Plenary The answer is 8, what is the question? Easier Challenge Include + and – in your calculation. Harder Challenge Include x, ÷ and brackets in your calculation. Hardest Challenge Include x, ÷, brackets and indices in your calculation.