Adding and Subtracting Integers

Front

What is an integer?

Back

An integer is a whole number that can be positive, negative, or zero.

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 the other is negative, subtract the smaller absolute value from the larger absolute value and take the sign of the integer with the larger absolute value.

Front

What does it mean to subtract integers?

Back

Subtracting integers can be rewritten as adding the opposite. For example, a - b is the same as a + (-b).

Front

What is the result of 15 + (-25)?

Back

The result is -10.

Front

How do you rewrite the subtraction problem 7 - 12 as an addition problem?

Back

7 - 12 can be rewritten as 7 + (-12).

Front

What equation represents Bob's total points lost if he lost 5 points on one page and 9 points on another?

Back

The equation is -5 + -9 = -14.

Front

What is the value that needs to be added to -10 to get to 7?

Back

You need to add 17.

Front

What is the result of 7 + (-6)?

Back

The result is 1.

Front

What is the result of -3 + 5?

Back

The result is 2.

Front

What is the result of -8 + (-4)?

Back

The result is -12.