Subtraction and addition are the foundation of all upper-level math. Ensure mastery with fun learning mats! Ten colorful, two-sided turtle game mats have basic facts on them; children match the sums or difference tiles to the correct problem on the mat. An activity guide with additional game ideas is provided. Addition facts 0-12; subtraction facts 0-11. Grades 1-3. 10 double sided turtle mats and 72 number tiles included.
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