For years, students have been taught to cross multiply when presented with proportion problems. Few understood what they were doing or why they were doing it.
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For years, students have been taught to cross multiply when presented with proportion problems. Few understood what they were doing or why they were doing it.
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Seller's Description:
Very good. Connecting readers with great books since 1972! Used books may not include companion materials, and may have some shelf wear or limited writing. We ship orders daily and Customer Service is our top priority!
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Seller's Description:
Very good. Connecting readers with great books since 1972! Used books may not include companion materials, and may have some shelf wear or limited writing. We ship orders daily and Customer Service is our top priority!
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Seller's Description:
Very Good Condition. Book is in very good condition. Text appears to be clean. Cover has some wear, scuffs, dings and corner bumps. Spine is in very good condition. May have book store sticker. Quantity Available: 1. Shipped Weight: Under 1 kilo. Category: Education; ISBN: 157110982X. ISBN/EAN: 9781571109828. Pictures of this item not already displayed here available upon request. Inventory No: 1561045508.
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Seller's Description:
New. NEW! Still in shrink wrap! Multiple copies available this title. Quantity Available: 7. Shipped Weight: Under 1 kilo. Category: Education; ISBN: 157110982X. ISBN/EAN: 9781571109828. Pictures of this item not already displayed here available upon request. Inventory No: 1561045509.
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Seller's Description:
Fine. Trade paperback (US). Lift-the-flap book. Glued binding. 98 p. In Stock. 100% Money Back Guarantee. Brand New, Perfect Condition, allow 4-14 business days for standard shipping. To Alaska, Hawaii, U.S. protectorate, P.O. box, and APO/FPO addresses allow 4-28 business days for Standard shipping. No expedited shipping. All orders placed with expedited shipping will be cancelled. Over 3, 000, 000 happy customers.
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Seller's Description:
New. Trade paperback (US). Lift-the-flap book. Glued binding. 98 p. In Stock. 100% Money Back Guarantee. Brand New, Perfect Condition, allow 4-14 business days for standard shipping. To Alaska, Hawaii, U.S. protectorate, P.O. box, and APO/FPO addresses allow 4-28 business days for Standard shipping. No expedited shipping. All orders placed with expedited shipping will be cancelled. Over 3, 000, 000 happy customers.
Choose your shipping method in Checkout. Costs may vary based on destination.
Seller's Description:
Fine. Trade paperback (US). Lift-the-flap book. Glued binding. 98 p. In Stock. 100% Money Back Guarantee. Brand New, Perfect Condition, allow 4-14 business days for standard shipping. To Alaska, Hawaii, U.S. protectorate, P.O. box, and APO/FPO addresses allow 4-28 business days for Standard shipping. No expedited shipping. All orders placed with expedited shipping will be cancelled. Over 3, 000, 000 happy customers.
