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Peer reviewedTucker, Benny F. – Arithmetic Teacher, 1973
Descriptors: Algorithms, Decimal Fractions, Division, Elementary School Mathematics
Peer reviewedWyvill, Ron – Mathematics in School, 1973
Modular arithmetic is used to find the frequency of Friday 13th's in any year. (MM)
Descriptors: Arithmetic, Elementary School Mathematics, Mathematical Applications, Mathematics
Peer reviewedReardin, C. Richard, Jr. – Arithmetic Teacher, 1973
A rationale is given for the Russian-peasant algorithm for multiplication indicating why it works as well as how it works. (DT)
Descriptors: Algorithms, Elementary School Mathematics, Mathematical Enrichment, Mathematics
Jansson, Lars C.; Beardslee, Edward C. – Mathematics Teaching, 1972
A proof is given that for any four digit number, repeated reordering of digits and subtraction will evenutally result in the number 6174. A computer program is included. (DT)
Descriptors: Computer Programs, Instruction, Mathematical Enrichment, Mathematics
Peer reviewedBidwell, James K. – Mathematics Teacher, 1973
Descriptors: Instruction, Mathematical Enrichment, Mathematics, Number Concepts
Peer reviewedHemmerly, Howard – Mathematics Teacher, 1973
Descriptors: Algebra, Geometric Concepts, Instruction, Mathematical Enrichment
Gosman, Howard Y. – Artithmetic Teacher, 1973
Descriptors: Educational Games, Elementary School Mathematics, Experiential Learning, Games
Peer reviewedSmith, Cedric A. B. – Mathematics in School, 1972
In this first of two articles, computational algorithms for multiplication and division which encourage use of one operation at a time are proposed. (DT)
Descriptors: Algorithms, Computation, Division, Elementary School Mathematics
Peer reviewedJohnston, J. H. – Mathematics in School, 1972
After briefly presenting possible origins for the use of the decimal system for counting and the duodecimal (base twelve) system for many measures, a notational scheme using six positive'' digits and six negative'' digits is presented. Examples and algorithms using this set of digits for operations with whole numbers, fractions, and in…
Descriptors: Algorithms, Arithmetic, Mathematical Concepts, Mathematics
Peer reviewedBoykin, Wilfred E. – Arithmetic Teacher, 1973
The Russian-peasant algorithm for multiplication is described and then extended to developing an algorithm for renaming base ten numbers in other number bases. (DT)
Descriptors: Algorithms, Elementary School Mathematics, Instruction, Mathematical Enrichment
Peer reviewedOliver, Charlene – Arithmetic Teacher, 1972
Descriptors: Arithmetic, Discovery Learning, Division, Elementary School Mathematics
Peer reviewedMyers, Donald E. – Arithmetic Teacher, 1971
Descriptors: Arithmetic, Elementary School Mathematics, Geometric Concepts, Instruction
Varga, Tamas – Math Teaching, 1970
Descriptors: Instruction, Mathematical Concepts, Mathematics, Number Concepts
Peer reviewedMilne, Esther – Arithmetic Teacher, 1971
Descriptors: Elementary School Mathematics, Grade 1, Instructional Materials, Manipulative Materials
Peer reviewedRogers, Hartley, Jr. – Arithmetic Teacher, 1970
Descriptors: Algebra, Algorithms, Division, Elementary School Mathematics
