Adding and Subtracting 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

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

Back

The result can be positive, negative, or zero, depending on the values of the integers.

Front

What is the absolute value of a number?

Back

The absolute value of a number is its distance from zero on the number line, always expressed as a positive value.

Front

How do you subtract integers?

Back

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

Front

What is the difference between 1,686 and -160?

Back

The difference is 1,686 - (-160) = 1,686 + 160 = 1,846.

Front

What is the sum of 16 + (-3) + 4 + (-16)?

Back

The sum is 16 - 3 + 4 - 16 = 1.

Front

What does it mean to dig a hole 2 feet deep?

Back

It means to go below the surface level by 2 feet, which can be represented as -2 feet.

Front

If a construction company digs 2 feet deep, then 5 more feet, and then 6 more feet, what is the total depth?

Back

The total depth is -2 + (-5) + (-6) = -13 feet.

Front

What is the result of adding two negative integers?

Back

The result is always a negative integer.

Front

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

Back

The result depends on the absolute values of the integers; it can be positive, negative, or zero.