Choose from a list of pre-made arithmetic worksheets designed for third graders.

This website from The Math Page explains and defines basic arithmetic terms and place value concepts. There is even a practice section at the very end of the lesson.

This site contains a free lesson on Prime Factorization in which students learn by doing practice problems.

You can learn to recognize negative numbers and do simple computation with negative numbers. The explanations are short, simple and clear. There is even a test to check your introductory skills.

Students complete interactive activities to explore decimal problems.

This tutorial resource provides help with math in addition, multiplication, subtraction, division, identities, powers, and exponentiation.

[Free Registration/Login Required] Students follow steps to find a fraction of a given set. Activotes are used to practice this concept. The last 2 pages can be printed out and used as game boards. Students use a multiplication chart to...

The goal of SpeedMath Deluxe is to create an equation, as quickly as possible, from the four digits the computer gives you. You can use addition, subtraction, multiplication and division to create your equation, but you are not allowed...

Math glossary and terms on operations for kids. Learn the definitions used in this mathematics subject such as addition, multiplication, and division on this site.

This resource contains several links that lead to discussions on several topics of decimals, including converting and comparing with fractions, rounding, estimating, and basic operations. Each page includes examples and some sample...

AAA Math's interactive tutorials and lessons assist students grades K-8 improve their understanding of a wide range of arithmetic topics. Students are provided with immediate feedback as they complete the "Learn," "Practice," and "Play"...

Can you beat the calculator? Your task is to find the sum of all even numbers between two and any selected two-digit even number. If you can find the number pattern, you are sure to beat the calculator every time. Links to other "Beat...

A succinct test on number concepts including problem solving, basic operations, and computation. Assessment is scored online and student score is compared with other student test scores. Great for use as a quick assessment.

These are five interactive units for Elementary math. Each unit is structured in four parts: explanation, activities, dictionary and assessment.

In Spanish. This site contains many games for practicing mental numerical calculation of basic operations.

Interactive fun activities that could be used in the classroom to practice mental math skills.