Unit 4 Study Guide

Front

Which is equivalent to 7 x 7 x 7 x 7 x 7 x 7?

Back

7^6

Front

Which number is the BASE in the expression 2^3 = 8?

Back

2

Front

Find and explain the error in the calculation: 5 - 3 + 2 = 5 - 5 = 0.

Back

Addition was done first and you should have subtracted first.

Front

Evaluate the expression 2x + 3 + x^2 for x = 4.

Back

27

Front

How is the number 9 best described in the expression 9m + 3n + 4?

Back

coefficient

Front

What is a coefficient in an algebraic expression?

Back

A coefficient is a numerical factor that multiplies a variable.

Front

What is a variable in mathematics?

Back

A variable is a symbol used to represent an unknown value.

Front

What is a constant in an algebraic expression?

Back

A constant is a fixed value that does not change.

Front

What does the term 'exponent' refer to in mathematics?

Back

An exponent indicates how many times a number is multiplied by itself.

Front

What is the order of operations in mathematics?

Back

The order of operations is Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).