Activities for Addition and Subtraction with Regrouping Pop quiz! What is the bane of a 2nd grade math teacher’s existence? If you said addition and subtraction with regrouping, you win! All jokes aside, addition and subtraction is one of the major focuses of 2nd grade math – and for good reason! In most states, students only learn addition and subtraction through 20 in 1st grade. By the time they reach 3rd grade, the focus shifts to multiplication and division, and addition and subtraction is only barely touched on. They are already expected to know it. In other words, students basically have one year to not only learn but master addition…
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