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Robert Reys
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Robert Reys
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Mental math in the middle grades
Jack A. Hope, Barbara J. Reys et al.
Mental math in the middle grades
Jack A. Hope
,
Barbara J. Reys
,
Robert Reys
· 1987 · 128 pages
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Number sense
Alistair McIntosh, Barbara J. Reys et al.
Number sense
Alistair McIntosh
,
Barbara J. Reys
,
Robert Reys
· 1996 · 232 pages
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Helping Children Learn Mathematics
Robert Reys, Mary Lindquist et al.
Helping Children Learn Mathematics
Robert Reys
,
Mary Lindquist
,
Diana V. Lambdin
· 2011 · 588 pages
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