Math Sheet Studio

Grade 1 Addition & subtraction Worksheets

Facts within 20 and missing numbers in equations. Every sheet comes with a computed answer key.

Make a mixed addition & subtraction sheet
Addition within 201.OA.C.6Add within 20, from sums to 10 up to three addends.Subtraction within 201.OA.C.6Subtract within 20, from facts to 10 up to taking away across ten.Missing numbers in equations1.OA.D.8Find the unknown number in addition and subtraction equations within 20.