Integer Operations

Front

What is an integer?

Back

An integer is a whole number that can be positive, negative, or zero. Examples include -3, 0, and 5.

Front

What is the result of adding two integers with the same sign?

Back

When adding two integers with the same sign, you add their absolute values and keep the common sign. For example, -3 + -5 = -8.

Front

What is the result of adding two integers with different signs?

Back

When adding two integers with different signs, you subtract their absolute values and take the sign of the integer with the greater absolute value. For example, -3 + 5 = 2.

Front

What is the rule for multiplying two integers?

Back

The product of two integers is positive if both integers have the same sign and negative if they have different signs. For example, -3 * 2 = -6.

Front

What is the rule for dividing two integers?

Back

The quotient of two integers is positive if both integers have the same sign and negative if they have different signs. For example, -6 ÷ 2 = -3.

Front

What is the average of a set of integers?

Back

The average is found by adding all the integers together and dividing by the number of integers. For example, the average of -2, -4, and -6 is (-2 + -4 + -6) ÷ 3 = -4.

Front

What does it mean to evaluate an expression?

Back

To evaluate an expression means to calculate its value by performing the operations indicated. For example, evaluating -6 + 21 gives 15.

Front

Back

The result is 15.

Front

Back

The result is 3.

Front

Back

The result is -2.