Mathematical Expressions

In the expression below what is the (-) labeled as?

4d-9

• altogether

• operation - subtraction

• operation - multiplication

• operation - I don't know

Half a number y

• 2y

• y/2

• y + 1/2

• y - 1/2

A number decreased by 9

• 9 - x

• x + 9

• x/9

• x - 9

The product of seven and a number increased by five

• 7+n+5

• 7/n+5

• 7n+5

• 7-n+5

Translate the following expression: 4 times a number increased by 5

• ( x + 4 ) + 5

• 4 ÷ x + 5

• 5x + 4

• 4x + 5

Translate the following expression: the quotient of a number and 4

• 4 ÷ a

• a ÷ 4

• 4 x a

• a - 4

Translate the following expression: a number cut in half decreased by 3

• 2x - 3

• 2x + 3

• x ÷ 2 - 3

• x ÷ 3 - 2

Translate the following expression: 12 less than a number cubed

• a³ - 12

• 12 - a³

• a² - 12

• 12 - a²

Translate the following expression: The difference of 20 and 3 times a number

• 20 - 3 x c

• 3 x c - 20

• 3 x 20 x c

• 20 x c - 3

What operation does "four decreased by 2" represent?

• Addition

• Subtraction

• Multiplication

• Division