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A General Algorithm for Factorization
Peer reviewed Peer reviewed
Draim, N. A. – Mathematics Teacher, 1973
Descriptors: Algorithms, College Mathematics, Division, Instruction
Finding the Missing Addend, or Checkbook Subtraction
Peer reviewed Peer reviewed
Johnson, Paul B. – Arithmetic Teacher, 1972
Descriptors: Algorithms, Elementary School Mathematics, Instruction, Mathematical Enrichment
Some Little-Known Recipes for Pi
Peer reviewed Peer reviewed
Hatcher, Robert S. – Mathematics Teacher, 1973
Descriptors: Algorithms, Computation, Instruction, Mathematics
Computation Made Interesting
Peer reviewed Peer reviewed
Arnold, William R. – Arithmetic Teacher, 1971
Descriptors: Algorithms, Arithmetic, Enrichment, Instruction
Happy Numbers, Sad Numbers.
Jeffery, Bob – Mathematics Teaching, 1978
This investigation concerns the repeated application of the rule "take the sum of the squares of the digits." (MP)
Descriptors: Algorithms, Elementary Secondary Education, Instruction, Mathematics
A Simple Method for Rationalizing the Divisor
Pinker, Aron – MATYC Journal, 1975
Descriptors: Algebra, Algorithms, College Mathematics, Division
A General Test of Divisibility.
Peer reviewed Peer reviewed
Smith, Lehi T. – Mathematics Teacher, 1978
A test for divisibility by any prime number is discussed and its proof is given. (MP)
Descriptors: Algorithms, Division, Instruction, Mathematics
A Simple Proof for a Fun Problem
Peer reviewed Peer reviewed
Jansson, Lars C. – Arithmetic Teacher, 1974
This article explains the generation of Kaprekar's constant in terms that upper elementary pupils can understand. The procedure is explained and the result proven. This is an example of a new, interesting problem for students that gives them drill in subtraction at the same time. (LS)
Descriptors: Algorithms, Deduction, Diagrams, Elementary School Mathematics
Repeating Decimals
Peer reviewed Peer reviewed
Winzenread, Marvin R. – Arithmetic Teacher, 1973
Descriptors: Algorithms, Decimal Fractions, Elementary School Mathematics, Instruction
Changing Bases by Direct Computation
Peer reviewed Peer reviewed
Lee, John W. – Mathematics Teacher, 1972
Descriptors: Addition, Algorithms, Instruction, Mathematics
Another Look at Fractions
Peer reviewed Peer reviewed
Ness, Harald M., Jr. – Arithmetic Teacher, 1973
An outline of the way that fractions might be presented in ninth grade algebra is given, and implications for elementary school instruction are noted. (DT)
Descriptors: Algebra, Algorithms, Elementary School Mathematics, Fractions
Adding Fractions Using the Definition of Addition of Rational Numbers and the Euclidean Algorithm
Peer reviewed Peer reviewed
Sherzer, Laurence – Arithmetic Teacher, 1973
Descriptors: Addition, Algorithms, Elementary School Mathematics, Fractions
Cube Roots on a Calculator
Peer reviewed Peer reviewed
Eimer, Rebecca A. – Mathematics Teacher, 1977
An algorithm is given for computing the cube root of any real number on a calculator. (DT)
Descriptors: Algorithms, Calculators, Instruction, Mathematics Education
Hindu-Bobtailed Multiplication: An Efficient Mathematical Algorithm
Peer reviewed Peer reviewed
Ercolano, Joseph – Arithmetic Teacher, 1974
Descriptors: Algorithms, Elementary School Mathematics, Instruction, Mathematics Education
Teaching the Square Root Algorithm by the Discovery Approach
Peer reviewed Peer reviewed
Tarte, Edward C. – Mathematics Teacher, 1974
Descriptors: Algorithms, Diagrams, Discovery Learning, Instruction
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