5-9 Book

Front

What expression represents the number of muffins left if Fatima made m batches of 12 muffins and her children ate 5?

Back

12m − 5

Front

If Maria and Sam each paid d dollars for their food and left $3 for the tip, what expression represents the total amount they paid?

Back

2d + 6

Front

Rebecca had $47 in her savings account and added $6 a week for w weeks. What expression represents the total amount in her account?

Back

47 + 6w

Front

Are the expressions 5(a + b) and 5a + b equivalent?

Back

No

Front

Use the Distributive Property to write an equivalent expression for 5x − 15.

Back

5(x − 3)

Front

What is the Distributive Property?

Back

a(b + c) = ab + ac

Front

Define a variable in mathematics.

Back

A symbol used to represent an unknown value.

Front

What does it mean for two expressions to be equivalent?

Back

They have the same value for all values of their variables.

Front

What is an expression in mathematics?

Back

A combination of numbers, variables, and operations.

Front

What is the value of the expression 3x + 2 when x = 4?

Back

14