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.
Discovery Education
Discovery Education: Web Math: See What Place Value a Number Has
Here's an interactive problem solver allowing you to type in a multi-digit number and get answers to what place value each number represents.
Illustrative Mathematics
Illustrative Mathematics: Peyton and Presley Discuss Addition
The purpose of this task is to support students in developing an understanding of a place value strategy for adding numbers. By using a representation to visualize the abstract notation, students will make sense of the strategy, adding...
Discovery Education
Discovery Education: Web Math: K 8 Math
This WebMath site shows how to add, subtract, multiply and divide through a step by step examples. The user simple selects the operation and types in two numbers, and the computer solves the problem through a step by step process. Also...
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.
AAA Math
Aaa Math: All About Addition
This AAA Math tutorial contains a wide assortment of addition explanations. This module also features reinforcement exercises and games.
ICT Games
Ict Games: Shark Numbers
Shark Numbers is a mobile-friendly place value game. The learning objective of this game is to know what each digit in a 3-digit number represents, (for ages 5-8).
ICT Games
Ict Games: Shark Pool Place Value
Practice your two-digit place value skills here. Just press the "go" button and find the number on the right that is represented by the base ten blocks on the left.