Khan Academy
Khan Academy: Coordinate Plane Problems in All Four Quadrants
Practice solving word problems by interpreting the meaning of points plotted on an xy coordinate system. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Quadrants on the Coordinate Plane
Practice graphing points on a coordinate plane and identifying the quadrant or axis where they are located. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Negative Symbol as Opposite
Recognize the negative sign as meaning the opposite of a number. Use the negative sign to find the opposites of numbers. In some items, we will find the opposite of an opposite. Students receive immediate feedback and have the...
Khan Academy
Khan Academy: Missing Numbers on the Number Line
Practice more challenging problems where you identify positive and negative integers on a number line that doesn't have zero labeled. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video...
BBC
Bbc: Skillswise: Subtraction
This Skillswise site focuses on subtraction. Included are a video about why learning to subtract is important, fact sheets and worksheets for instruction, quizzes on the information presented, and games to practice the skill. Be aware...
Other
Nm Learning Games Lab: Math Snacks
Games and videos, each accompanied by guidelines for teachers and students, cover math topics such as proportion, ratio, number line, scale, and measurement. Downloads are available for iPad, iPhone, and iPod Touch.
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.
Purple Math
Purplemath: Solving Inequalities: An Overview
A discussion on how to solve linear and nonlinear inequalities is presented. Both the Test Method and the Factor Method of checking positive/negative intervals are included as part of the discussion.
Math Is Fun
Math Is Fun: Word Questions: Elementary Addition
Work against a timer as you test your ability to add and to solve word problems. Use number-line clue for help and score points. Fun activity for individuals, small groups, on an entire class.
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.
Help Algebra
Help algebra.com: The Real Number System
Natural numbers, whole numbers, integers and rational numbers begin this lesson on the real number system. You can also learn more about the number line and absolute value. Examples and diagrams are included to enhance understanding.
Oswego City School District
Regents Exam Prep Center: Linear Inequalities
Listed steps to graph an inequality along with a example that is graphed on a coordinate plane. Easy to read and understand!
Cool Math
Coolmath: Coolmath4kids: Yardstick Subtraction
Demonstrates how to use a yardstick as a number line for simple subtraction.
Lawrence Hall of Science
The Math Page: Skill in Arithmetic: Table of Contents
This website from The Math Page explains some helpful hints about how to do mental math.
Lawrence Hall of Science
The Math Page: Skill in Arithmetic: The Meaning of Multiplication: Mental Calculation
If you are looking for a website that explains and defines the basics of mental multiplication with helpful hints then you have arrived at an excellent resource. There are even practice problems at the very end of the lesson.
Khan Academy
Khan Academy: Adding Negative Numbers on the Number Line
Practice matching number line diagrams to addition expressions involving negative numbers. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Number Equations & Number Lines
Practice writing addition and subtraction equations to match number line diagrams. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Adding and Subtracting on the Number Line Word Problems
In this exercise, students practice adding and subtracting on the number line in word problems. Students receive immediate feedback and have the opportunity to watch a video tutorial, get hints, and try questions repeatedly.
Khan Academy
Khan Academy: Decimals on the Number Line: Tenths
Practice finding decimal numbers on the number line. Decimals are limited to tenths in these problems. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Decimals on the Number Line: Hundredths
Practice finding decimal numbers on the number line. Decimals are limited to hundredths. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Equivalent Fractions on the Number Line
Graph and identify equivalent fractions on a number line. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints. CCSS.Math.Content.3.NF.A.3.a Understand two fractions as...
Khan Academy
Khan Academy: Find 1 on the Number Line
Locate 1 on a number line labeled with 0 and a unit fraction. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints. CCSS.Math.Content.3.NF.A.1 Standard 2. Understand a...
Khan Academy
Khan Academy: Fractions on the Number Line
Plot and spot fractions on the number line. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints. CCSS.Math.Content.3.NF.A.1 Standard 2. Understand a fraction as a...