Mr. Martini's Classroom
Mr. Martini's Classroom: Counting by Ones
Practice counting from 1 to 99 by selecting the missing value.
Mr. Martini's Classroom
Mr. Martini's Classroom: Picking Signs
Chose which sign addition or subtraction completes the expression. Click "How to do this" for further instructions.
Mr. Martini's Classroom
Mr. Martini's Classroom: Kids' Adding Up to 3
Practice addition facts up to three with this interactive exercise.
Mr. Martini's Classroom
Mr. Martini's Classroom: Kids' Adding Up to 4
Practice addition facts up to four with this interactive exercise.
Mr. Martini's Classroom
Mr. Martini's Classroom: Kids' Adding Up to 6
Practice addition facts up to six with this interactive exercise.
Mr. Martini's Classroom
Mr. Martini's Classroom: Kids' Adding Up to 7
Practice addition facts up to 7 in this interactive exercise.
Mr. Martini's Classroom
Mr. Martini's Classroom: Kids' Adding Up to 8
Practice addition facts up to 8 with this interactive exercise.
Mr. Martini's Classroom
Mr. Martini's Classroom: Kids' Subtract Up to 9
Practice subtraction facts up to nine with this interactive exercise.
Mr. Martini's Classroom
Mr. Martini's Classroom: Kids' Subtract Up to 4
Practice subtraction facts up to four using this interactive exercise.
Mr. Martini's Classroom
Mr. Martini's Classroom: Subtracting With Multiple Choices Math Facts
Practice subtraction facts 4 to 9 with this interactive multiple choice activity.
Mr. Martini's Classroom
Mr. Martini's Classroom: Multiplying With Multiple Choice Answers
Practice multiplication facts 4 to 9 with this interactive multiple choice activity.
Mr. Martini's Classroom
Mr. Martini's Classroom: Dividing With Multiple Choice Math Facts
Practice multiplication facts by answering multiple choice questions in this interactive activity.
Mr. Martini's Classroom
Mr. Martini's Classroom: Multiplication Quiz
Practice multiplication facts with this interactive quiz.
CK-12 Foundation
Ck 12: Elem Math: Overview of Subtraction Numbers to 100 Word Problems
[Free Registration/Login may be required to access all resource tools.] The video explains two subtraction problems one with regrouping and the other without regrouping.
AAA Math
Aaa Math: Subtraction
This tutorial focuses on basic subtraction, subtraction facts, subtraction skills, subtraction of fractions and subtraction of positive and negative integers. Features include practice exercises and games.
Other
Maths Zone
A huge collection of math online games for all ages. Access different types of math such as: use and apply, count and understand, addition and subtraction number facts, multiplication and division number facts, shapes, measuring, and...
Lawrence Hall of Science
The Math Page: Skill in Arithmetic: Elementary Addition
This resource offers six brief arithmetic lessons: sums less than ten, sums of ten, and sums between ten and twenty, doubling, zero, and a set of general practice problems.
Other
Maths.cilenia.com: Addition
Students will practice addition. subtraction, multiplication, and division by changing the sign and solving.
Other
Math Exercises for Kids: Additions Up to 30
Students will solve addition problems up to sums of 30.
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.
Cool Math
Coolmath: Coolmath4kids: Subtraction: Fact Families
Explains what fact families are for addition and subtraction and includes sample problems to try.
Cool Math
Coolmath: Coolmath4kids: Yardstick Subtraction
Demonstrates how to use a yardstick as a number line for simple subtraction.
Cool Math
Coolmath: Coolmath4kids: Subtraction
A set of seven short tutorials on subtraction. Begins with a basic introduction to how subtraction works and covers topics such as fact families, place value, and regrouping.