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Order of Operations

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Learning Outcomes

Understand which operations have priority

Apply BIDMAS to calculations

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B

Apply the brackets first

Work out the indices or roots

Complete division or multiplication from left to right

D

Complete division or multiplication from left to right

M

Complete addition or subtraction from left to right

A

S

I

Complete addition or subtraction from left to right

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Example 1

2 + 3 × 6

B

D

M

A

S

I

2 + 18

= 20

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Example 2

14 ÷ (2 + 3)

2

14 ÷ (4 + 3)

14 ÷ 7

= 2

B

D

M

A

S

I

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Your Turn

3 + 5 × 2

13

16

30

10

A

B

C

D

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Your Turn

12 - 5 + 4

3

11

2

5

A

B

C

D

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Your Turn

6 × (5 + 1)

30

31

36

12

A

B

C

D

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Your Turn

15 ÷ 5 + 3

6

9

1.67

12

2

A

B

C

D

10 of 10

Any Questions?