Flashcard #3: Expressions REVIEW

Front

Which expression represents '14 more than 3 times a number, n'?

Back

3n + 14

Front

Simplify 5(2 - 7n)

Back

10 - 35n

Front

Sammy drew a rectangle with a width of w and a length of 3w. Which of the following is NOT true about the rectangle that Sammy drew?

Back

The perimeter of the rectangle is 4w.

Front

Simplify 6(x - 2)

Back

6x - 12

Front

Which expression is equivalent to 7a – 5 – 3a – 2?

Back

4a - 7

Front

What is the formula for the perimeter of a rectangle?

Back

P = 2(length + width)

Front

What is the formula for the area of a rectangle?

Back

A = length × width

Front

What does it mean to simplify an expression?

Back

To combine like terms and reduce the expression to its simplest form.

Front

What is a variable in mathematics?

Back

A symbol used to represent an unknown value, often denoted by letters like x, y, or n.

Front

What is the distributive property?

Back

a(b + c) = ab + ac, meaning you multiply a term by each term inside the parentheses.