Here is something I did last year with my son (3rd grade) by using our big bag of Halloween candy. All year long, we pulled out the bag, and did "candy math." He loved it and even begged me to teach his friends fractions, decimals, and percentages when they came over. At the end, I let him eat a piece of candy. I usually did this orally, but I have created a worksheet for teachers or parents who want to try it. Good luck!
PS... I am an ELA teacher, which is why I didn't charge for this product. Hopefully, I didn't mess anything up. :)