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Activity
Lawrence Hall of Science

The Math Page: Skill in Arithmetic: Percents Are Ratios

For Students 3rd - 8th Standards
This Math Page tutorial explains how percents are ratios and then features a practice exercise.
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Unit Plan
Lawrence Hall of Science

The Math Page: Skill in Arithmetic: The Meaning of Subtraction, and Mental Calculation

For Students Pre-K - 1st Standards
This website explains and defines basic subtraction. There are practice problems at the very end of this lesson.
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Activity
National Council of Teachers of Mathematics

Nctm: Figure This: Number Tricks

For Students 3rd - 8th Standards
Can you break the magic number code? Test your algebra aptitude in this challenge that explores number generalizations, symbols, and equations. Discover how algebraic procedures are used in everyday situations in this one page activity...
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Website
Other

Mathematics Computation

For Teachers 3rd - 8th
This site gives you math worksheets to save the teacher time and keep the students learning.
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Activity
Lawrence Hall of Science

The Math Page: Skill in Arithmetic: The Multiplication Table

For Students 3rd - 5th
This multiplication table has multiplication facts through 9 X 9 and also lets students practice them.
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Activity
Lawrence Hall of Science

The Math Page: Skill in Arithmetic: Subtracting Whole Numbers and Decimals

For Students 3rd - 8th Standards
If you are looking for a website that explains and defines subtraction with decimals you have arrived at an excellent resource. There are even practice problems at the very end of the lesson.
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Activity
Lawrence Hall of Science

The Math Page: Skill in Arithmetic: Dividing Decimals

For Students 3rd - 8th
This website from The Math Page explains and defines how to divide decimals. There is even a practice section at the very end of the lesson.
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Activity
Lawrence Hall of Science

The Math Page: Skill in Arithmetic: Percent of a Number

For Students 3rd - 8th
This Math Page tutorial explains how to find the percent of a number and features a practice to check comprehension.
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Activity
Purple Math

Purplemath: Systems of Non Linear Equations: Definitions

For Students 9th - 10th Standards
This Purplemath lesson provides formulas, equations, graphs and explanations of systems of equations.
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Interactive
Fun Brain

Fun Brain: Tic Tac Toe Squares (Math Facts Games)

For Students 5th - 8th Standards
Players practice adding, subtracting, multiplying, and dividing skills while playing virtual Tic Tac Toe. They can also try their hand at squares, cubes, and square roots.
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Lesson Plan
Success Link

Success Link: Trim the Tree Addition

For Teachers K - 1st
Decorate a Christmas tree with addition facts. Use this lesson plan to review addition facts and have young scholars make up addition problems of their own.
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Activity
Math Fact Cafe

Math Fact Cafe

For Students Pre-K - 1st
This site provides math fact sheets and flashcards for parents and teachers. Access hundreds of pre-generated math sheets, or create custom sheets to meet your own special needs.
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Interactive
Study Pad

Splash Learn: Decimal Arithmetic

For Students 5th Standards
[Free Registration/Login Required] This game provides practice in decimal arithmetic including addition, subtraction, multiplication, and division of decimals.
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Unit Plan
BBC

Bbc Skillswise: Percent and Fractions: Ratio and Proportion

For Students 3rd - 8th Standards
Activities and factsheets exploring ratios and proportions in everyday life. Interactive, colorful, and fun.
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Activity
AAA Math

Aaa Math: Identifying Equivalent Decimals and Fractions

For Students 9th - 10th
This site explains why decimals are a type of fraction. Gives practice recognizing equivalents, plus games to practice the skill.
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Handout
AAA Math

Aaa Math: Simplifying Fractions

For Students 9th - 10th
This site explains how to simplify fractions, then offers problems and games to practice this skill.
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Unit Plan
AAA Math

Aaa Math: Least Common Denominator

For Students 3rd - 8th
This site explains how to find the least common denominator. Also provides games to work on this skill.
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Unit Plan
AAA Math

Aaa Math: Subtracting Fractions With Different Denominators

For Students 9th - 10th
This AOL personal page explains how to subtract fractions with different denominators, then offers games to practice this skill.
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Activity
AAA Math

Aaa Math: Converting a Percent to a Fraction

For Students 9th - 10th
This site explains how to change a percent to a fraction, then offers problems and games to practice this skill.
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Activity
AAA Math

Aaa Math: Subtracting Decimals

For Students 9th - 10th
This personal site explains how to subtract decimals of the tenths place value. Includes games to practice this skill.
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Unit Plan
AAA Math

Aaa Math: Rounding to the Nearest Hundredth

For Students 5th - 7th
This site explains how to round decimals to the nearest hundredth. This site provides games to practice this skill.
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Activity
AAA Math

Aaa Math: Multiplying Thousandths by Hundredths

For Students 9th - 10th
This site explains how to multiply decimals: thousandths by hundredths. Offers games to practice this skill.
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Activity
AAA Math

Aaa Math: Division of Decimals by Decimals

For Students 9th - 10th
This interactive site explains how to divide a decimal by a decimal, then offers games to practice this skill.
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Activity
AAA Math

Aaa Math: Division by 4, 5, and 6

For Students 3rd - 8th Standards
This site explains the basic facts for division by 4, 5, and 6. It also provides problems and games to practice this skill. CCSS.Math.Content.3.OA.C.7 Fluently multiply and divide within 100