Looking for engaging first grade math worksheets that cover EVERY First Grade Common Core Math Standard? First Grade Math is a collection of 61 interactive activity sheets that practice number sense, addition, subtraction, place value, time, geometry, fractions, word problems, and so much more! They can be used ANYTIME! These worksheets are perfect for math centers, morning work, independent practice, homework, math stations, sub tubs, and assessments! The CCSS is listed on every page! DIGITAL O