Need help with mental math in your classroom? This guide is full of tips, tricks, and examples to help the teacher encourage learners to use their brain instead of a calculator. Practice problems are included with reasons how...

Addition and Subtraction Math Theme provides an excellent collection of free sample worksheets, teacher resources, lesson plans and interactive media to support addition and subtraction skills.

Print out these colorfully illustrated PDF file pages to practice your addition facts when adding a one. Fold them in half and one side shows the problem while the other side shows the problem with the correct answer. Put them in a math...

Print out these colorfully illustrated PDF file pages to practice your addition facts when adding a zero. Fold them in half and one side shows the problem while the other side shows the problem with the correct answer. Put them in a math...

Print out these colorfully illustrated PDF file pages to practice your addition facts when adding a two. Fold them in half and one side shows the problem while the other side shows the problem with the correct answer. Put them in a math...

Print out these colorfully illustrated PDF file pages to practice your addition facts when adding a three. Fold them in half and one side shows the problem while the other side shows the problem with the correct answer. Put them in a...

Print out these colorfully illustrated PDF file pages to practice your addition facts when adding a four. Fold them in half and one side shows the problem while the other side shows the problem with the correct answer. Put them in a math...

Print out these colorfully illustrated PDF file pages to practice your addition facts when adding a five. Fold them in half and one side shows the problem while the other side shows the problem with the correct answer. Put them in a math...

Print out these colorfully illustrated PDF file pages to practice your addition facts when adding a six. Fold them in half and one side shows the problem while the other side shows the problem with the correct answer. Put them in a math...

Print out these colorfully illustrated PDF file pages to practice your addition facts when adding a eight. Fold them in half and one side shows the problem while the other side shows the problem with the correct answer. Put them in a...

Print out these colorfully illustrated PDF file pages to practice your addition facts when adding a seven. Fold them in half and one side shows the problem while the other side shows the problem with the correct answer. Put them in a...

Print out these colorfully illustrated PDF file pages to practice your addition facts when adding a nine. Fold them in half and one side shows the problem while the other side shows the problem with the correct answer. Put them in a math...

Print out these colorfully illustrated PDF file pages to practice your addition facts when adding a ten. Fold them in half and one side shows the problem while the other side shows the problem with the correct answer. Put them in a math...

Print out these colorfully illustrated PDF file pages to practice your addition facts when adding an eleven. Fold them in half and one side shows the problem while the other side shows the problem with the correct answer. Put them in a...

Print out these colorfully illustrated PDF file pages to practice your addition facts when adding a twelve. Fold them in half and one side shows the problem while the other side shows the problem with the correct answer. Put them in a...