Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Add and Subtract Decimals
Find a quick, concise explanation of how to add and subtract decimals. Step by step examples are included to help you understand how to line up the decimals points and then find the sum or difference.
Math Slice
Math Slice: Number Sense Math Drills
A group of topics that include counting with pictures to 20, sums to 100, finding the missing number in a sequence, multiplication, expanded and standard form, and basic computation practice with addition, subtraction, multiplication, or...
ClassFlow
Class Flow: Add and Subtract Large Numbers
[Free Registration/Login Required] Use this flipchart as a review of adding, subtracting and rounding larger numbers. Practice after the concept has been taught.
ClassFlow
Class Flow: Decimals Addition Subtraction
[Free Registration/Login Required] In this lesson students will add decimals to the tenths and hundredths place after first learning to line up the decimal. There is also an Activote session integrated into this flipchart.
ClassFlow
Class Flow: Decimals Division
[Free Registration/Login Required] This flipchart is a review of multiplication of decimals. Students are given multiple real-life examples to solve using multiplication of decimals.
ClassFlow
Class Flow: Magic Math Squares
[Free Registration/Login Required] Students complete number sentences by inserting numbers in the correct order to arrive at a predetermined answer.
ClassFlow
Class Flow: Multiplication by Two Digit Multipliers
[Free Registration/Login Required] This flipchart introduces multiplying two-digits by two-digits. It gives the steps involved, guided practice, and individual practice problems.
ClassFlow
Class Flow: Multiplication Review
[Free Registration/Login Required] A fun way to review multiplication facts for students in the elementary grades! Includes practice with multiplying one- and two-digit numbers and setting up/solving word problems.
Topmarks Online
Topmarks: Subtraction Grids
Can you meet the challenge to see how many subtraction calculations you can do in two minutes? There are different levels and you can choose either one or two missing numbers to make your number sentence correct.
Math Slice
Math Slice: Rounding: Math Worksheets
This tool allows you to create worksheets where students must round whole numbers or decimal numbers to various place value positions.
Math Slice
Math Slice: Subtraction: Math Worksheets
This tool allows you to create worksheets where students solve subtraction equations at varying levels of difficulty.
University of Cambridge
University of Cambridge: Nrich: Making Sticks
On this one page website sharpen your logic, factors, and multiples skills while working on this challenge. The solution is available to double check your solution.
Teachnology
Teachnology: Addition and Subtraction Teaching Theme
Addition and Subtraction Math Theme provides an excellent collection of free sample worksheets, teacher resources, lesson plans and interactive media to support addition and subtraction skills.
Ducksters
Ducksters: Practice Math Questions: Triple Digit Subtraction
Find practice questions for triple-digit subtraction on this site.
Purple Math
Purplemath: Place Value: Concepts
Explains and illustrates the thinking behind the concept of place value.
Purple Math
Purplemath: Rounding Numbers
Reviews how to round numbers to a given place or number of decimal places.
Khan Academy
Khan Academy: Subtract Decimals #6
Practice the subtraction of small numbers and decimals to the hundredths.
Khan Academy
Khan Academy: Subtract Decimals #5
Practice subtracting decimals to the hundredths place. Includes hints.
Khan Academy
Khan Academy: Adding Decimals #6
Practice adding whole numbers and decimals up to the hundredths place. Includes hints.
Khan Academy
Khan Academy: Adding Decimals #5
Practice adding whole numbers and decimals up to the hundredths place. Includes hints.
Math Slice
Math Slice: Ordering Numbers
A jeopardy game where students practice finding the sum of two numbers. Each number will have one to four digits where the more digits that are in the problem, the more points the correct answer is worth.
Ducksters
Ducksters: Practice Math Answers: Triple Digit Subtraction
Practice Math Answers: Triple Digit Subtraction
Disfruta Las Matematicas
Disfruta Las Matematicas: Numeros Decimales!
This unit could be used as an introduction to decimals. It has good examples and also contains worksheets that could be printed with or without the answers.Read phonetically
Calculator Soup
Calculator Soup: Long Subtraction Calculator With Regrouping
Do long subtraction with regrouping or borrowing. Enter whole numbers or decimal numbers to find the difference. This calculator finds the answer using long subtraction with regrouping and shows the work step by step.