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Integers are numbers that do not have a fractional part; they include counting numbers, negative of counting numbers, and zero. A counting number, or a natural number, is a number that can be used to count. Examples of c... More »
An integer is a positive or negative whole number. For example, 38, 4, 0, 12, 399 are all integers. Fractions, decimals and percents are not integers because they are not whole numbers. More »
A positive integer is a whole number greater than zero, and a negative integer is a whole number less than zero. Whole numbers are numbers without any fractions or decimals. These numbers are also called counting numbers... More »
To do twostep equations with integers, simplify the whole numbers in the equation. Isolate x in the equation by adding or subtracting the opposite whole number to both sides of the equation. Divide both sides by the num... More »
When adding integers, some basic rules apply: adding two positive numbers results in a positive answer and adding two negative numbers results in a negative answer. When adding a positive and a negative, students should ... More »
A fraction is a part of a whole, and fractions are necessary when dealing with portions and amounts that are not whole numbers. Fractions are a part of mathematics and science, as well as simple household functions such ... More »
Integers with the same sign are added and the sum takes the sign of the integers, while integers with different signs are subtracted and the difference takes the sign of the number with the highest absolute value. The se... More »

US StandardsAligned
K12 Curriculum Aligned to Stateand Common Core Standards.

IXL Family Membership
Get Started for $9.95/month.Win Prizes, Certificates. Have Fun!

IXL K12 Math Practice
IXL is the Web's Most AdaptiveMath Practice Site. Try it Now!

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