An extensive collection of teacher resources to help in teaching and reviewing the concepts of basic addition and subtraction. There are many worksheets, activities, PowerPoint presentations, smartboard activities, Word, Excel, and pdf...

[Free Registration/Login Required] In this flipchart students will either count up and/or use a hundreds chart to determine a missing addend.

[Free Registration/Login may be required to access all resource tools.] In this learning module, students are presented with a set of numbers up to 100,000, most of which end with one or more zeroes, and must apply their understanding of...

Students will play learning games to find missing numbers, match pictures, identify angles, and select true or false.

Students learn how to solve a mathematical equation with a missing addend. Students will learn the combinations of addends to find the sums of nine and ten. Students practice math facts with accuracy and immediacy for sums of nine and ten.

This resource is a set of ten timed practice problems where parameters are selected for the sum and the range of addends. The sum and one addend are given and students determine the missing number to create the sum. Instant feedback and...