When your fourth grader is ready to move on to multiple-digit addition and subtraction, these riddles will make review fun and challenging.

Subtract from your uncertainty and master your math skills in this comprehensive workbook!

Learn to lasso numbers with an estimation round-up! Rounding and estimation are tools that can help kids add or subtract large sums quickly. And it's a skill that they can use in everyday activities.

This fraction workbook covers fraction equivalents, simplification, adding and subtracting and improper fractions.

Try your luck with this colorful collection of St. Patrick's Day math! Practice counting and writing numbers. Then make the leap from counting to adding and subtracting, with picture equations.

Math isn't just adding and subtracting—it's about making sense of numbers and information. Practice with calendars and different types of graphs to help your child dive into data!