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This is a set of 25 numbered (and repeated un-numbered) task cards with 25 different 1st grade math problems, aligned to Common Core 1.OA.B.4, Florida MAFS.1.OA.2.4, and various similar State standards. These problems require the student to answer various problems relating the fact that a subtraction problem is an unknown-addend problem as well. An answer key, as well as a blank test sheet, are also provided, as well as two posters for the Florida standard.
These task cards are labeled as Florida MAFS.1.OA.2.4, with a cover sheet and the standard on each numbered card. If you would like these labeled as various other State standards or unlabeled, I have these same task cards in these formats in other listings in my shop.
See this same item labeled as Common Core, other State standards, and unlabeled:
Please let me know if you have any questions or suggestions - I'm always creating!