Mathematics, 01.10.2019 01:10, frankierice020

Mrs. dinson has 9 pencils on her desk. she has
3 pencils in a box. to find the number of pencils
she has altogether, mrs. dinson writes 9 + 3 = 12.
what other addition fact could mrs. dinson use?

Answers: 3

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Mrs. dinson has 9 pencils on her desk. she has
3 pencils in a box. to find the number of penci...