Your students will love coloring by sum this Halloween season! These Halloween themed pictures are full of basic addition and subtraction practice within 10, 20, and 100 and Rounding to tens, hundreds, and ones. These math worksheets work well for math centers, homework, bell ringers, and as a supplement to your math curriculum.In this bundleBlack Cat Differentiated Subtraction to 10, 20, 100Pumpkin Differentiated Rounding to tens, hundreds, ones Ghost Differentiated Addition to 10, 20, 100