Integers + Adding & Subtracting 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 integers?

Back

Adding integers involves combining their values. If both integers are positive, the result is positive. If both are negative, the result is negative. If one is positive and one is negative, subtract the smaller absolute value from the larger absolute value and keep the sign of the integer with the larger absolute value.

Front

What does it mean to subtract integers?

Back

Subtracting integers means finding the difference between them. To subtract a negative integer, you add its positive counterpart. For example, 5 - (-3) is the same as 5 + 3.

Front

What is the result of 15 - (-15)?

Back

30

Front

What is the result of 8 - 10?

Back

-2

Front

How do you compare integers using symbols?

Back

You can use < (less than), > (greater than), and = (equal to) to compare integers. For example, -5 > -7 because -5 is closer to zero.

Front

What equation describes Bob's progress if he lost 5 points and then 9 points?

Back

-5 + (-9) = -14

Front

What is the elevation of a submarine at -32 feet after diving down 18 feet?

Back

-50 feet

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 -4 is 4.

Front

What happens when you add a positive integer and a negative integer?

Back

You subtract the smaller absolute value from the larger absolute value and take the sign of the integer with the larger absolute value.