Curcio,, Frances R Understanding rational numbers and proportions / Frances R. Curcio and Nadine S. Bezuk ; with Barbara E. Armstrong... [et al.]

Understanding rational numbers and proportions / Frances R. Curcio and Nadine S. Bezuk ; with Barbara E. Armstrong... [et al.] . - Virginia : The National Council of Teachers of Mathematics, 1996 . - VIII, 95 p. : il. 28 cm . - (Curriculum and evaluation standards for school mathematics addenda series . Grades 5-8)
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