Order of operations

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  • Order of operations

    1. 1. ORDER of OPERATIONS!what are the main operations we do in math? +-x÷
    2. 2. LI: work out question with many steps correctlywhy is the order of doing a question important?
    3. 3. Bracketsmultiply Divide Add Subtract
    4. 4. the correct order Bracketsto use operations multiply Divide Add Subtract
    5. 5. the correct order Bracketsto use operations multiply Divide Add Subtract2 + 3 x 4 what to do first?
    6. 6. the correct order Bracketsto use operations multiply Divide Add Subtract2 + 3 x 4 what to do first?2+3x4
    7. 7. the correct order Bracketsto use operations multiply Divide Add Subtract 2 + 3 x 4 what to do first?2+3x4this gives 2+3x4=2+12=14
    8. 8. extension - order of operations with fractions with fractions
    9. 9. extension - order of operations with fractions with fractions3+9 12 = = 6 2 2
    10. 10. extension - order of operations with fractions with fractions 3+9 12 = = 6 2 2the fraction acts like a bracket andwe get
    11. 11. extension - order of operations with fractions with fractions 3+9 12 = = 6 2 2the fraction acts like a bracket andwe get (3+9)÷2=12÷2=6
    12. 12. extension - order of operations with fractions with fractions 3+9 12 = = 6 2 2the fraction acts like a bracket andwe get (3+9)÷2=12÷2=6 30 30 = = 213+2 15
    13. 13. extension - order of operations with fractions with fractions 3+9 12 = = 6 2 2the fraction acts like a bracket andwe get (3+9)÷2=12÷2=6 30 30 = = 213+2 15we get
    14. 14. extension - order of operations with fractions with fractions 3+9 12 = = 6 2 2the fraction acts like a bracket andwe get (3+9)÷2=12÷2=6 30 30 = = 213+2 15we get 30÷(13+2) = 30÷15 = 2
    15. 15. what happens when
    16. 16. what happens when14-43+2
    17. 17. what happens when 14-4 3+2we get
    18. 18. what happens when 14-4 3+2we get (14-4)÷(3+2)=10÷5=2
    19. 19. what happens when 14-4 10 = = 6 3+2 5we get (14-4)÷(3+2)=10÷5=2
    20. 20. try the following a) 6x(5+3)= b) 2-5x3= c) 14-30÷5= d) 35÷7-5=
    21. 21. try the following a) 6x(5+3)= 6x8 = 48 b) 2-5x3= c) 14-30÷5= d) 35÷7-5=
    22. 22. try the following a) 6x(5+3)= 6x8 = 48 b) 2-5x3= 2-15 = -13 c) 14-30÷5= d) 35÷7-5=
    23. 23. try the following a) 6x(5+3)= 6x8 = 48 b) 2-5x3= 2-15 = -13 c) 14-30÷5= 14-6 = 8 d) 35÷7-5=
    24. 24. try the following a) 6x(5+3)= 6x8 = 48 b) 2-5x3= 2-15 = -13 c) 14-30÷5= 14-6 = 8 d) 35÷7-5= 5-5=0

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