This fun candy themed math activity is great for reviewing and reinforcing regrouping. I have included 3 differentiated centers. One set contains mixed addition and subtraction with double digit numbers and single digit numbers. Another set contains mixed addition and subtraction using all double digits numbers. The final and most advanced set has mixed addition and subtraction problems using 3 digit numbers. Students will sort each problem as even or odd AND sort according to whether they regrouped or did not regroup. I have included two different recording sheets to choose from and sorting jars are in color and in black and white.