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Diffy Inception puzzles have their own symmetric beauty, but mostly they are just plain fun. Students can practice subtraction with positive and negative integers up to three digits.

Notes to the teacher include puzzle instructions, game variations, journaling prompts, and more. Plus answers for all puzzles.

This 30-page printable (pdf) activity booklet is available in both 8 1/2 by 11 (letter size) or A4 pages.

For ages 10 and up.

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