Integers include positive whole numbers, negative whole numbers, and zero.
The "set of all integers" is often shown like this:
Integers = {… -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, …}The dots at each end of the set mean that you can keep counting in either direction. The set can also be shown as a number line:
The arrows on each end of the number line mean that you can keep counting in either direction.
Adding and Subtracting IntegersLooking at a number line can help you when you need to add or subtract integers.
Whether you are adding or subtracting two integers, start by using the number line to find the first number. Put your finger on it. Let's say the first number is 3.
Here are two rules to remember:
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Integers less than 5 include -4, -3, -2, -1, 0, 1, 2, 3, and 4. Integers are whole numbers that can be positive, negative, or zero. In this case, all the numbers from -4 to 4 are less than 5.
You did not provide any choices to choose from, but you can tell this way. Integers include whole numbers (which are the counting numbers and zero) and their negatives. So -5, 0, 1, 5023, -5435345435, are all integers. No fractions or decimals are included in the set of integers.
Rational numbers and Real Numbers. The multiplicative inverses of integers are not integers.
yesYes, integers are real numbers.
There are 457 such numbers.