Calculate! 3 X 4 + 14 ÷ 2 8 ? 19 ?.

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Presentation transcript:

Calculate! 3 X 4 + 14 ÷ 2 8 ? 19 ?

CALCULATION RULES

Order of calculation BODMAS

B – Brackets. Work out anything in brackets first B – Brackets. Work out anything in brackets first. If there is more than 1 brackets  work from the outside to the inner O – Of, Change ‘of’ to ‘X’ and work it out D – Divide M – Multiply . When there are only x and ÷ sign in a sum, you can work in any order A – Add S – Subtract. When there are only + and – signs in a sum, you can work in any order.

18 – 14 ÷ (3 + 4) + 2 x 3 B  18 – 14 ÷ 7 + 2 x 3 ÷ and x  18 – 2 + 6 - and +  22

Exercise 1 (16 – 10) ÷ 2 (8 – 1 + 2) x 0 + 40 16 – 10 ÷ 2 [(5 + 30) ÷ 5 + 2] ÷ 3 (4 + 3 ) x 2 5 – [8 x (0-6) + 20] (14 – 5) ÷ (20 – 2 ) 8 + [4 x ( 11-13)] 30 + 132 ÷ 11 86 + [(1+1) ÷ (-3)] 5 x 5 + 6 ÷ 2 [(2+7) x (0+1) – 11] x 3 2 + 5 ÷ 3 x 6 [(30 ÷ 6 + 20) x 5 – 5] ÷12 12 x (7-6) ÷ 6

(16 – 10) ÷ 2

16 – 10 ÷ 2

(4 + 3 ) x 2

(14 – 5) ÷ (20 – 2 )

30 + 132 ÷ 11

5 x 5 + 6 ÷ 2

2 + 5 ÷ 3 x 6

12 x (7-6) ÷ 6

(8 – 1 + 2) x 0 + 40

[(5 + 30) ÷ 5 + 2] ÷ 3

5 – [8 x (0-6) + 20]

8 + [4 x ( 11-13)]

86 + [(1+1) ÷ (-3)]

[(2+7) x (0+1) – 11] x 3

[(30 ÷ 6 + 20) x 5 – 5] ÷12