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  1. Mixed Operations | First Grade Math Worksheets - Biglearners

  2. Mixed Operations Math Worksheets - Math-Drills

  3. Mixed word problems for grade one - K5 Learning

  4. Mixed math facts worksheets - K5 Learning

  5. 1st Grade Printable Math Worksheets - Super Teacher Worksheets

  6. Mixed Problems Worksheets for Practice - Math-Aids.Com

  7. Printable 1st Grade Mixed Operation Worksheets

  8. Free Printable Mixed Operations Worksheets for 1st Grade

  9. Free 1st Grade Math Worksheets—Printable w/ Answers - Mashup Math

  10. Choose the Operation | First Grade Math Worksheets