Identifying and Writing Expressions

• the product of a number and 12

• the product of 12 and a number

• 12 times a number

• a number times 12

Translate this phrase into an algebraic expression.

2 times the sum of a number and 15

Use the variable B to represent the unknown number.

• 2(B+15)

• 2B+15

• 2B×15

• 2×15B

Translate this phrase into an algebraic expression.

The quotient of twenty and a number

Use the variable n to represent the unknown number.

• 20/n

• 20-n

• n+20

• n-20

Translate this phrase into an algebraic expression.

• 2t - 11

• 2(t - 11)

• 2(t / 11)

• 2 x t - 11

An algebraic expression is a math phrase including variables. An expression can be a single part, like 4, or 2m, or a longer expression, like 35c - 5y + 3m. They cannot have an equal sign.

Groups:

(a) Algebraic Expressions

,

(b) Not Expressions

An algebraic expression is a math phrase including variables. An expression can be a single part, like 4, or 2m, or a longer expression, like 35c - 5y + 3m. They cannot have an equal sign.

Groups:

(a) Algebraic Expressions

,

(b) Not Expressions

Which expression below describes the following algebraic expression?
4(x + 6)

• four times x plus 6

• x plus six times four

• four times the sum of x plus 6

• four times six plus x

Expression including at least one variable.

• Numerical Expression

• Variable Term

• Sponge Bob Square Pants

• Algebraic Expression

Which of the following is(are) an example(s) of an algebraic expression? Choose all that apply.

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• c minus 5

• 5 less than c

• c increased by 5

• half of c