Other
Interactive Learning Sites for Education: Decimals
A large collection of links to interactive activities and games on the topic of decimals.
Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Rounding Decimals
Find a quick, concise explanation of how to round decimals. An example is given and clearly explained.
PBS
Pbs Learning Media: How Many Rails for the Detour?
The CyberSquad adds decimals to figure out how many rails they need to build a detour that will help them go around a mountain in this Cyberchase video segment.
Lawrence Hall of Science
The Math Page: Skill in Arithmetic: Percents Are Ratios
This Math Page tutorial explains how percents are ratios and then features a practice exercise.
Lawrence Hall of Science
The Math Page: Skill in Arithmetic: Multiplying and Dividing by Powers of 10: The Meaning of Percent
This excellent math resource explains and defines the meaning of percent. Multiplying and dividing by a power of 10 is incorporated as a preview to understanding scientific notation.
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.
Khan Academy
Khan Academy: Practice: Decimals in Expanded Form
Questions are provided to review decimals in expanded form. Immediate feedback is given and hints or a video are available if needed.
Khan Academy
Khan Academy: Practice: Decimals in Expanded Form Review
Review how to write decimals in expanded form, then attempt some practice problems.
Calculator Soup
Calculator Soup: Ratio Simplifier
Use this calculator to simplify ratios of the form A : B. A or B can be whole numbers, integers, decimal numbers, fractions or mixed numbers. They can be different types, for example, one fraction and one decimal. The ratio values can be...
Application Magazine
Aplicaciones: Examen De Decimals No. 1
Take this test to test your knowledge of: decimal place value, addition and subtraction of decimals. Final score will be given at the end.
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.
Calculator Soup
Calculator Soup: Rounding Numbers Calculator
Rounding calculator teaches how to round numbers up or down to any decimal place. Choose ones to round a number to the nearest dollar. Choose hundredths to round an amount to the nearest cent.
Calculator Soup
Calculator Soup: Round to Nearest Multiple Calculator
Use this rounding calculator to round a number to the nearest multiple. You can round a number up or down to the nearest 2, 4, 5, 10, 50, etc. You can also round to the nearest tenth, hundredth, thousandth, etc. multiple in a decimal place.
Study Ladder
Studyladder: Multiplying Decimals by 10
Studyladder:Multiplying decimals by 10 is an interactive learning activity.
CK-12 Foundation
Ck 12: Arithmetic: Numbers in Expanded Form
[Free Registration/Login may be required to access all resource tools.] Express decimals in expanded form.
CK-12 Foundation
Ck 12: Elem Math: Expressing Hundredths as Decimals
[Free Registration/Login may be required to access all resource tools.] Students watch a video and attempt practice problems involving expressing hundredths as decimals.
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: Expressing Thousandths as Decimals
[Free Registration/Login may be required to access all resource tools.] Students watch a video and attempt practice problems involving expressing thousandths as decimals.
Sophia Learning
Sophia: Thousandths
The thousandths place is explored in this video tutorial. Students watch a lesson that includes a detailed example.
Common Core Sheets
Common Core Sheets: Number and Operations in Base Ten 5.nbt.7 Worksheets
Teachers can assess students' knowledge of adding, subtracting, multiplying, and dividing decimals to hundredths with these printable worksheets. You can even create your own worksheet or flashcards.
Khan Academy
Khan Academy: Multiplying and Dividing Decimals by 10
In this exercise, students practice multiplying and dividing decimals by 10. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
CK-12 Foundation
Ck 12: Elem Math: Identifying Decimals on a Number Line to Hundredths
[Free Registration/Login may be required to access all resource tools.] For this learning module, students are asked to state the decimals to the hundredths place for given locations on a number line. Includes video demonstrating a...
CK-12 Foundation
Ck 12: Elem Math: Identifying Decimals on a Number Line to Tenths
[Free Registration/Login may be required to access all resource tools.] For this learning module, students are asked to state the decimals to the tenths place for given locations on a number line. Includes video demonstrating a sample...
Curated OER
Science Kids: Science Images: Basic Calculator
This photo shows a basic calculator sitting on a desk. The value of Pi is written to five decimal places on the screen.