Yr10 Order of operations with integers

• 18

• -15

• 15

• -27

Find and explain the error.

5 - 3 + 2

5 - 5

0

• There is no error.

• Addition was done first and you should have subtracted first

• They added wrong numbers

• Multiplied worng

23 + (30 ÷ 10) x 4 =

• 35

• 32

• 12

• 45

• 16

• 2

• 72.25

• 8.75

40 - 2⁴ + 8 =

• 40

• 32

• 24

• 42

True or false:
Addition ALWAYS comes before subtraction.

• True
• False

4 + 2 + 6 ÷ 1 =

• 14

• 13

• 12

• 11

Simplify:
[25 - (13 + 4) + 4] ÷ 3 =

• 6

• 2

• 3

• 4

4 + 6 ÷ 2 + 5 =

• 13

• 12

• 11

• 10

8 + 7 × 3 – 8 =

• 37

• 21

• 10

• 30