Operations with Integers

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 does it mean to add a negative integer?

Back

Adding a negative integer is the same as subtracting the absolute value of that integer. For example, 6 + (-3) is the same as 6 - 3.

Front

What is the result of adding two negative integers?

Back

The result of adding two negative integers is always a negative integer. For example, -2 + (-3) = -5.

Front

What is the result of adding a positive integer and a negative integer?

Back

The result depends on the absolute values of the integers. If the positive integer is larger, the result is positive; if the negative integer is larger, the result is negative.

Front

What is the rule for multiplying two negative integers?

Back

The product of two negative integers is a positive integer. For example, -5 x -5 = 25.

Front

What is the rule for multiplying a positive integer and a negative integer?

Back

The product of a positive integer and a negative integer is a negative integer. For example, 4 x (-3) = -12.

Front

How do you find the difference between two temperatures?

Back

To find the difference between two temperatures, subtract the lower temperature from the higher temperature. For example, the difference between 3°C and -4°C is 3 - (-4) = 7°C.

Front

What is the absolute value of an integer?

Back

The absolute value of an integer is its distance from zero on the number line, regardless of direction. For example, the absolute value of -5 is 5.

Front

What does it mean to increase a negative elevation?

Back

Increasing a negative elevation means moving closer to sea level or a reference point. For example, if you are at -80 meters and increase by 42 meters, your new elevation is -38 meters.

Front

What is the result of 8 + (-1) + (-3)?

Back

The result is 4. You can simplify it as 8 - 1 - 3 = 4.