Practice solving more challenging word problems with addition and subtraction. Numbers used are 20 or less. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Addition and subtraction are covered here, with definitions, tips & tricks, lesson plans, and a section covering typical student questions.

Addition and subtraction are covered here, with definitions, tips & tricks, lesson plans, and a section covering typical student questions.

Addition and subtraction are covered here, with definitions, tips & tricks, lesson plans, and a section covering typical student questions.

Addition and subtraction are covered here, with definitions, tips & tricks, lesson plans, and a section covering typical student questions.

Addition and subtraction are covered here, with definitions, tips & tricks, lesson plans, and a section covering typical student questions.