CK-12 Foundation
Ck 12: Elem Math: Mixed Review Numbers Up to 100000
[Free Registration/Login may be required to access all resource tools.] Students practice identifying place value with numbers up to a hundred thousand.
CK-12 Foundation
Ck 12: Elem Math: Recognizing Place Value of Digits in Numbers
[Free Registration/Login may be required to access all resource tools.] Students practice recognizing place value of whole numbers.
CK-12 Foundation
Ck 12: Elem Math: Add and Subtract Numbers to 1000 (Grade 3)
[Free Registration/Login may be required to access all resource tools.] This learning module features four videos and a set of practice questionsin which students use addition and subtraction to solve problems with more than two values...
CK-12 Foundation
Ck 12: Elem Math: Recognize Place Values to 100,000 (Grade 4)
[Free Registration/Login may be required to access all resource tools.] This learning module features four videos and a set of practice questions in which students identify the value of a digit up to one-hundred thousand.
Math Is Fun
Math Is Fun: Decimals
A good introduction to decimals, which includes a definition of place value and several examples of decimal numbers. Follow links at the bottom of this page to access decimal worksheets as well as information on rounding numbers, adding...
CK-12 Foundation
Ck 12: Elem Math: Arbitrary Digits Numbers Up to 100000
[Free Registration/Login may be required to access all resource tools.] Students practice making large and small numbers with whole numbers.
CK-12 Foundation
Ck 12: Elem Math: Calculating Quotients Numbers Up to 100000
[Free Registration/Login may be required to access all resource tools.] Students practice calculating quotients while attempting whole number place value problems.
CK-12 Foundation
Ck 12: Elem Math: Complete the Number Patterns Based on the Multiplication Table
[Free Registration/Login may be required to access all resource tools.] The video describes how to use repeated addition to show the pattern for multiplying by 6.
CK-12 Foundation
Ck 12: Elem Math: Creating Largest and Smallest Numbers Given Digits
[Free Registration/Login may be required to access all resource tools.] Students practice using place value to create the largest and smallest number possible.
CK-12 Foundation
Ck 12: Elem Math: Expressing Tenths as Decimals
[Free Registration/Login may be required to access all resource tools.] Students watch a video overview and attempt practice problems involving expressing tenths as decimals.
CK-12 Foundation
Ck 12: Elem Math: Identifying Place Value Given a Digit
[Free Registration/Login may be required to access all resource tools.] Students watch a video and attempt practice problems on identifying the place value of a particular digit.
CK-12 Foundation
Ck 12: Elem Math: Adding Decimals From the Thousandths Place to the Tens Place
[Free Registration/Login may be required to access all resource tools.] This mathematics resource is a video demonstrating addition with decimals to the thousandths place, followed by practice problems adding numbers with digits in the...
CK-12 Foundation
Ck 12: Elem Math: Arbitrary Digits (Numbers Up to 100,000)
[Free Registration/Login may be required to access all resource tools.] A video and practice questions where students are given up to five digits and must make numbers that match various statements. [2:04]
CK-12 Foundation
Ck 12: Elem Math: Arranging Numbers in Specific Order: Numbers to 1000
[Free Registration/Login may be required to access all resource tools.] A video and practice questions where students are shown how to put a set of numbers up to 1000 into numerical order, which they then try on their own. [2:18]
CK-12 Foundation
Ck 12: Elem Math: Calculating Quotients (Numbers Up to 100,000)
[Free Registration/Login may be required to access all resource tools.] In this learning module, students are presented with a large number and must state how many of another number would divide into it. An accompanying video...
CK-12 Foundation
Ck 12: Elem Math: Subtracting Decimals by Inserting Place Holding Zeroes
[Free Registration/Login may be required to access all resource tools.] A video and practice questions on how to subtract decimal numbers using place-holding zeroes. [1:48]
CK-12 Foundation
Ck 12: Elem Math: Subtract Decimals From the Thousandths Place to the Tens Place
[Free Registration/Login may be required to access all resource tools.] A video and practice questions on how to subtract decimal numbers from the tens place to the thousandths decimal place. [0:47]
CK-12 Foundation
Ck 12: Elem Math: Rounding the Same Decimal to Different Decimal Places
[Free Registration/Login may be required to access all resource tools.] A video and practice questions where students are presented with a decimal number and must round it to three different decimal place value positions. [2:14]
Lawrence Hall of Science
The Math Page: Skill in Arithmetic: Add Whole Numbers, Add Decimals
This website explains and defines adding whole numbers and decimals. Content explores addition with regrouping and how to align numbers in a written calculation. There are even practice problems at the end of the lesson.
Annenberg Foundation
Annenberg Learner: Operations
Anneberg Learner: Operations the source provides addition, subtraction, multiplication, and division. It also provides an understanding of its relationships to whole numbers.
Lawrence Hall of Science
The Math Page: Skill in Arithmetic: The Meaning of Subtraction, and Mental Calculation
This website explains and defines basic subtraction. There are practice problems at the very end of this lesson.
Discovery Education
Discovery Education: Web Math: See How Two Numbers Add Together
WebMath offers a good addition practice site. Students can use this site to check their homework assignment. An explanation is given regarding how each answer was arrived at.
Discovery Education
Discovery Education: Web Math: How to Subtract Two Numbers
WebMath offers a good practice site for basic subtraction. Children can type in the problem and an answer is given with explanation. A good site to check homework problems.
Cool Math
Coolmath: Coolmath4kids: Lattice Multiplication
Demonstrates step by step how to use the lattice method for multiplying numbers.