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Math Wizardry: Subtraction Flash Cards - Double Digits
This book has 100 different subtraction flash cards with double digit numbers. Each subtraction problem is listed on one page and the answer listed on the next.
The flash cards are designed to help you quickly learn to do double digit subtraction in your head
The flash cards are designed to help you quickly learn to do double digit subtraction in your head
207 pages, Kindle Edition
First published November 6, 2014
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