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# Order of Operations

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by

## Mr Mattock

on 24 September 2017

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#### Transcript of Order of Operations

Order of Operations
Order of Operations Pyramid
L.O. - To complete multi-stage calculations correctly using the correct order of operations.
3 x 4 / 2 =

5 - 3 + 2 =
Starter
Work out

5 + 3 + 3 + 3 + 3

why 5 + 3 x 4 is not equal to 32.
Starter
Work out

5 + 3 + 3 + 3 + 3 =
17

why 5 + 3 x 4 is not equal to 32.
Because this means
5 + 3 + 3 + 3 + 3 = 17
Multi-stage calculations
4 + 3 x 5 =

25 - 4 ÷ 2 =
2
Multi-stage calculations
4 + 3 x 5 - 3 =

(4 + 3) x 5 - 3 =

4 + 3 x (5 - 3) =

(4 + 3) x (5 - 3) =
Main Activity 1
Complete the order of operations worksheet.
Multi-stage calculations
4 + 3 x 5 =
4 + 15
=
19

25 - 4 ÷ 2 =
25 - 16 ÷ 2

=

25 - 8

=
17
2
Multi-stage calculations
4 + 3 x 5 - 3 =
4 + 15 - 3
=
16

(4 + 3) x 5 - 3 =
7 x 5 - 3
=

35 - 3
=
32
4 + 3 x (5 - 3) =
4 + 3 x 2
=
4 + 6
=
10
(4 + 3) x (5 - 3) =
7 x 2
=
14
Order of Operations pyramid
3 x 4 / 2 =
6

5 - 3 + 2 =
4
Main Activity 2
Use the 6 numbers in the given order to make as many different totals as possible. You can use + - x ÷ ( ).

7 3 4 8 2 1

Key
Examples

Activities
Activity