Equations

Front

What is an equation?

Back

An equation is a mathematical statement that shows that two expressions are equal, using an equal sign (=).

Front

What does it mean to solve an equation?

Back

To solve an equation means to find the value of the variable that makes the equation true.

Front

What is subtraction?

Back

Subtraction is the process of taking one number away from another.

Front

What is the result of subtracting a number from itself?

Back

The result is always 0.

Front

What is the addition property of equality?

Back

The addition property of equality states that if you add the same number to both sides of an equation, the two sides remain equal.

Front

What is the subtraction property of equality?

Back

The subtraction property of equality states that if you subtract the same number from both sides of an equation, the two sides remain equal.

Front

What is a missing number problem?

Back

A missing number problem asks you to find a number that makes an equation true.

Front

What is the commutative property of addition?

Back

The commutative property of addition states that changing the order of the numbers you are adding does not change the sum.

Front

What is the identity property of addition?

Back

The identity property of addition states that when you add 0 to any number, the sum is that number.

Front

What is the identity property of subtraction?

Back

The identity property of subtraction states that when you subtract 0 from any number, the result is that number.