1.1 to 1.5 Review

LETTERS that represent unknown numbers

• coefficients

• constants

• variables

• factors

A number WITHOUT a variable?

• Constant

• Coefficient

• Variable

• Factors

A number WITH a variable?

• Constant

• Coefficient

• Variable

• Factor

Select the terms that are LIKE TERMS.

• 5x and 5

• 6a and a

• 7b and 7c

• 8b and 8b²

An example of a DIFFERENCE would be?

• 18 - c

• 18 + c

• 18c

A mathematical sentence made up of numbers and variables that includes an equal sign is called an ____________.

• equation
• expression
• coefficient
• variable

What is the algebraic expression for                  "the sum of n and 9"?

• n - 9
• n + 9
• n/9
• 9n

3 + (-6) =

• -3

• 3

• -18

• 18

-6 + (-8) =

• -14

• 14

• -48

• 48

-8 / 4 = (divide)

• 1

• 2

• -2

• -4