Add/Subtract Integers

Front

What is an integer?

Back

An integer is a whole number that can be positive, negative, or zero, but not a fraction or decimal.

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 means finding the difference between them. To subtract a negative integer, you add its absolute value.

Front

What is the result of 2 + 3 x 6?

Back

20 (Remember to follow the order of operations: multiplication before addition.)

Front

What is the result of 1 - 13?

Back

-12

Front

What is the result of -8 + 4?

Back

-4

Front

What is the result of 15 - (-4)?

Back

19 (Subtracting a negative is the same as adding a positive.)

Front

What is the result of -76 - 4?

Back

-80

Front

What is the order of operations in mathematics?

Back

The order of operations is a set of rules that determines the sequence in which calculations are performed: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right). This is often remembered by the acronym PEMDAS.

Front

How do you add a positive integer and a negative integer?

Back

To add a positive integer and a negative integer, subtract the smaller absolute value from the larger absolute value and take the sign of the integer with the larger absolute value.