First Grade Math Worksheets - Twisty Noodle Math Worksheets 1 - 20 of 156. 1 Digit Subtraction Math Worksheet. 2 Digit Addition with Place Value Math Worksheet. 2 Digit Place Value Math Worksheet. 3 Digit Place Value Math Worksheet. Add 10 to each Number Math Worksheet. Add 100 to each Number Math Worksheet. Add More Candy Canes to Make 10 Math Worksheet.