Showing Results for add and subtract

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

This beautiful, colorful activity book offers a comprehensive overview of division basics and techniques. Add tools like skip-counting on a number line, repeated subtraction, fact families, arrays, and equal groups to your problem-solving arsenal. Be sure

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

Did you know that light can bend? Help your curious kids learn the important physical properties of light and explore how light adds colors to our world, with this beautiful series on light and color.