3-1= - 2, 5-2= - 3, 7-3= - 4, 10-2= - 8, 6-6= - 0, Mrs. Cuellar had 6 cookies. Mr. HS ate 5. How many are left? - 1, Mrs. Cuellar had 9 cookies. Mr. HS ate 4. How many are left? - 5,

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