Order of Operations

in BIDMAS

What does the B stand for

• Brackets first

• BATS

• BORING

• Bingo

Which operation would you do first in the following equation?

10 - 4 ÷ 1 x 5

• Subtraction

• Division

• Multiplication

• Addition

What does 3² mean?

• 3 x 2
• 3 x 3
• 2 x 2 x 2

Which Operation would you do first

18 + (6 – 2) × 2

• 2 x 2

• Brackets (6-2)

• 18 + 6

• I don't know

Answer explanation

BIDMAS says start with the backets

True or false:
Addition ALWAYS comes before subtraction.

• True
• False

Are these two expressions equal?

(6 - 4) -1 and 6 - (4 - 1)

• Yes, they both equal 1

• Yes, they both equal 3

• No, they are not equal

• 8 x 7

• 14 + 8

• 7 - 3

The I in BIDMAS stands for Indices. Indices are :

• Powers

• exponents

• more than 1 index

• They are all right

• the subtraction

• the multiplication

• Division

Answer explanation

Division is before the mulitplication left to right

Using BIDMAS you look at the Addition and Subtraction and choose

• The big one first

• The smallest one first

• you work left to right

• you work right to left