On this page, you can practice the relationship or connection between addition and subtraction with interactive online exercises. The script will give you either an addition or a subtraction sentence, or show you a picture, and you will then write the matching subtraction or addition... or two matching subtractions.
You can choose timed or untimed practice, the number of practice problems, and the number range used in the problems.
See also this video: Subtraction and Addition in the Same Picture.
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