The paper describes strategies for remediating mathematics difficulties (particularly the process of regrouping or "borrowing" in whole number subtraction) in children. Three interrelated aspects of the process (the meaning of subtraction, understanding of non-standard numerals, and the function of the subtraction algorithm), are considered. The…

An example is provided of remediation activities for learning disabled adolescents having a specific computation difficulty with place value and the subtraction with regrouping algorhythm. A seven-day remediation procedure, which may be used with the other basic operations, fades from the concrete to the symbolic mode. (CL)

Six easy-to-learn strategies are offered to help students with learning problems in mathematics make error-free subtraction calculations when either the subtrahend or remainder is a 9, 8, or 7 and when the minuend is in the teens. (CB)

Presents activities using the Three Pigs to increase students' understanding of addition and subtraction. Argues that addition and subtraction are something that students can view and participate in when using the Three Pigs instead of just the manipulation of numbers. (ASK)

Learning disabled elementary school children can learn subtraction skills with the aid of "hide and seek" number concept cards and a five-step sequence: (1) find a way to work it out, (2) add to check, (3) look for subtraction "partners," (4) group facts into "families," and (5) practice. (CB)

Programing a computer to list subtraction palindromes is discussed. Sample programs and output are included. (MNS)

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

Two mnemonic acronyms can help learning-disabled children remember to complete the necessary steps for regrouping in addition and subtraction. (DB)

Discusses how students construct their own understanding of mathematics as they discover and then learn it in class. Presents Krystal's method to subtract mixed numbers that her peers adopt and name for her. (ASK)

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

The Virginia State Supervisor for Learning Disabilities interviews Rose Sinicrope concerning the development of her finger subtraction strategy for use with learning-disabled students. Several examples of subtraction problems are illustrated to demonstrate the finger counting method, and this method is compared to the strategies of Chisanbop and…

Previous studies indicate that many early elementary school children have the misconception that whole number subtraction is a commutative operation. The degree and character of this subtraction error was investigated in this longitudinal study. Results obtained from three groups of students with different number abilities provided further…

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)

Two alternatives are given to the decomposition and equal addition subtraction algorithms. (MK)

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)