Add a little spooky feel to your next math lesson! These activity pages are great for independent work or small group. The colored copies can be laminated and used with dry erase makers. No colored copier? No problem. Have your students color in the black and white copies when they're finished. Decorate your classroom or hallway for Halloween while displaying your students' work. This product includes the following 3rd grade skills: Place Value (several related skills), rounding to the nearest 10 and 100, telling time, and adding and subtraction with regrouping.