Are you looking for some fun 1st grade math worksheets to review math concepts and have Spring & St. Patrick's Day themes? Your students will love these printable math worksheets that include several common core standards. There are addition worksheets, subtraction worksheets, adding doubles worksheets (5 different versions), worksheets to practice 3-D shapes, and place value worksheets.There are 18 worksheets in all, and all of the answer keys are included! The worksheets have fun St. Patri