Memorizing subtraction facts is not only challenging, but success-oriented and fun with this five-minutes-a-day system. Students work through a series of daily timed tests at their own rate, beginning with 0-1, 2, 3, 0-3, etc., mastering each one before proceeding to the next. Math whiz kids are constantly challenged, while students having difficulty are given the time they need to master and overlearn the facts. In addition to worksheets and answer keys, this booklet has personal flash card masters, forms for folders and record-keeping, and review and challenge masters.
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- Used Book in Good Condition
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