Numerical and Algebraic Expression

What is a coefficient?

• The number in front of a variable

• The letter in an expression

• The operation symbol

• The exponent on a variable

Choose the algebraic expression.

• 8² - 11

• 15 + 3(10 - 5)

• y - 13.2

• 100/6 + 7

Choose the equivalent expression: 7⁵

• 7 x 5

• 7 + 7 + 7 + 7 + 7

• 7 x 7 x 7 x 7 x 7

• 5 x 5 x 5 x 5 x 5 x 5 x 5

Evaluate: 6⁰ + 9

• 9

• 10

• 15

• 6

What operation does xy represent?

• Multiplication

• Division

• Addition

• No operation

• 15

• 28

• 45

• 9

Define a variable and write the phrase as an algebraic expression: four times as many apples

Algebraic Expression:

• an expressions that may contain numbers, operations and symbols.

• A symbol, usually a letter that stands for an unknown number.

• Parts of an algebraic expression separated by addition and subtraction signs.

• The numerical factor of a term that contains a variable.

Variable:

• an expressions that may contain numbers, operations and symbols.

• A symbol, usually a letter that stands for an unknown number.

• Parts of an algebraic expression separated by addition and subtraction signs.

• The numerical factor of a term that contains a variable.

Terms:

• an expressions that may contain numbers, operations and symbols.

• A symbol, usually a letter that stands for an unknown number.

• Parts of an algebraic expression separated by addition and subtraction signs.

• The numerical factor of a term that contains a variable.