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Home School & Library Curriculum tie-ins Math Gear™ Fast Subtraction Facts View Full-Size Image  Math Gear™ Fast Subtraction Facts     Master subtraction with this fun spinning wheel of math problems. A new challenge with every turn!   Price : $7.99 U.S. ISBN : 978-1-58476-327-7 Age : 4 and up Pub Date: Jun 2005 Pages: 14 Trim Size: 5.250" x 5.250" x 0.750"