A technique for adding and subtracting integers is presented as an alternative to the number line. White and black chips are used to represent positive and negative integers, respectively. (MP)

The results of a study of third-graders' performance in solving certain open sentences, and implications for teaching open sentences are discussed. (DT)

Very specific suggestions for teaching subtraction facts using addition are given. Several activities are suggested. (MK)

Directions are given for preparing a puzzle that may be used to provide practice in computation. (MP)

Developing concepts, modeling, and solving problems form the core of essential learning about addition and subtraction. That educators may make the task more difficult than necessary is the thrust of several recent studies. Highlights from these studies (with suggestions for instruction) are presented. (JN)

Four activities concerning addition and subtraction are described. They range in appropriate grade level from K-2 (crossing out objects) to 6-8 (solving decimal inequalities). Masters for worksheets are provided. (SD)

Allowing students to examine different ways of performing an operation is suggested as a means of increasing their understanding. (MP)

Discusses ways of teaching integers to children who have a wide range of ability. The strategies involve not only the "right" answer but also such considerations as learning the meaning behind the operators, relating operations with integers to real-world situations, and finding a variety of ways to solve the problems. (JN)

"Math Facts Memory Made Easy" is a program which provides teachers with an effective alternative instructional method and an accompanying curriculum designed to improve students' ability to memorize basic mathematical facts. General information about the program and examples of strategies used are presented. (JN)

Reported is a study on solution methods used by third-grade students as they solve open sentences involving addition and subtraction. A list of methods that children might use is compared to a frequency tally of those methods used by a group of 32 students who solved 16 problems. (JP)

This article focuses on the aspect of mental arithmetic that uses thinking strategies that are effective with large numbers as well as basic facts. Two activities are suggested for lack of the four operations. (MK)

Types of errors made by children in addition and subtraction are presented and discussed. Suggestions are given for testing, diagnosing, and prescribing for instruction. (MNS)

Four worksheets are designed to provide practice with addition, subtraction, and multiplication of whole numbers and decimals. (JT)