Operations with Integers

Front

What is an integer?

Back

An integer is a whole number that can be positive, negative, or zero, but does not include fractions or decimals.

Front

How do you add two integers with the same sign?

Back

When adding two integers with the same sign, add their absolute values and keep the common sign.

Front

How do you add two integers with different signs?

Back

When adding two integers with different signs, subtract the smaller absolute value from the larger absolute value and take the sign of the integer with the larger absolute value.

Front

What is the result of adding -5 and 3?

Back

-5 + 3 = -2.

Front

What is the result of adding -7 and -2?

Back

-7 + (-2) = -9.

Front

How do you subtract integers?

Back

To subtract an integer, add its opposite. For example, a - b is the same as a + (-b).

Front

What is the result of subtracting 4 from -3?

Back

-3 - 4 = -7.

Front

What is the result of subtracting -5 from 2?

Back

2 - (-5) = 2 + 5 = 7.

Front

How do you multiply two integers?

Back

When multiplying two integers, if they have the same sign, the product is positive; if they have different signs, the product is negative.

Front

What is the result of multiplying -3 and 4?

Back

-3 * 4 = -12.