The Math League
The Math League: Percent & Probability
This tutorial gives definitions and examples of percents and probability and covers percent as a fraction and percent as a decimal.
Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Really Big and Small Numbers
Find a quick, concise explanation of the names of large numbers all listed in a table. Other interesting tidbits of information about the names of larger numbers are also included. Names of decimals numbers are also included at the end...
AAA Math
Aaa Math: Subtracting Decimals
This personal site explains how to subtract decimals of the tenths place value. Includes games to practice this skill.
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.
TOPS Learning Systems
Top Science: Decimal Bounce [Pdf]
An activity where students learn the meanings of metric prefixes, and how to use them with decimal numbers and with different units of measurement.
Purple Math
Purplemath: Number Bases: Introduction & Binary Numbers
The process of converting between different number bases is actually fairly simple, but the thinking behind it can seem a bit confusing at first. And while the topic of different bases may seem somewhat pointless to you, the rise of...
Alabama Learning Exchange
Alex: Decimal War
Students will use base 10 manipulatives to build models of decimal numbers. Students will compare decimal numbers. This lesson plan was created as a result of the Girls Engaged in Math and Science, GEMS Project funded by the Malone...
ClassFlow
Class Flow: Ordering Decimals
[Free Registration/Login Required] In this flipchart, students apply their understanding of ordering decimals on a number line. Students use the visual and interactive features in Activstudio to arrange decimals in arrays.
CK-12 Foundation
Ck 12: Math Grade 4
Browse resources related to fourth-grade math standards. Click on a topic for interactive lessons, videos, and extra practice.
CK-12 Foundation
Ck 12: Elem Math: Expressing an Equivalent Decimal Ending in Zero to Thousandths
[Free Registration/Login may be required to access all resource tools.] The video describes how to add zeros as place holders at the end of a decimal to make an equivalent decimal out to the thousandths place value in this example.
Purple Math
Purplemath: Rounding Numbers
Reviews how to round numbers to a given place or number of decimal places.
Saddleback College
Algebra2 Go: Prealgebra
The resource consists of comprehensive learning tools such as class notes, video lectures, and templates through which students can review prealgebra topics.
Alabama Learning Exchange
Alex: Are Your Numbers Round?
Young scholars will use a variety of activities and games to learn how to round numbers.This lesson plan was created as a result of the Girls Engaged in Math and Science, GEMS Project funded by the Malone Family Foundation.
AAA Math
Aaa Math: Aaa Math Lessons
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"...
Application Magazine
Aplicaciones: Numeros Decimales
Test your knowledge of decimal numbers. Final score will be given in each section.
Teaching Treasures Publications
Teaching Treasures: Year Six Math (Page 2)
This interactive worksheet covers a wide range of math concepts such as Roman Numerals, distributive property, estimating sums, and comparing fractions and decimals. Some concepts may be slightly challenging. Learners can access the help...