Siner, Helen B.
Practical mathematics : decimals, ratios, proportions, and percents / - Menlo Park, Calif. : Cummings Pub. Co., [1975] - 104 p. : ill. ; 24 cm.
084656713X
Arithmetic.
512 CUM 1975 A032 Or. 513/.2
Practical mathematics : decimals, ratios, proportions, and percents / - Menlo Park, Calif. : Cummings Pub. Co., [1975] - 104 p. : ill. ; 24 cm.
084656713X
Arithmetic.
512 CUM 1975 A032 Or. 513/.2