In this set, there are 7 Halloween math riddles with answer keys. Math concepts covered include addition (with and without carrying), adding three addends, adding numbers with decimal points, adding fractions, and solving multiplication problems. Students will have a blast working out problems to get answers to Halloween riddles. It is a great way to review math concepts and have some holiday fun at the same time! I have additional fall/holiday items and additional math sets at my store - Terri's Teachables.