Objective: Solve division problems with remainders using the area model.
Lesson 21 focuses on division problems with remainders. Quotients and remainders are independent of each other but must both be included to give a complete response. A quotient and a remainder cannot be recorded after an equal sign because the symbol R or the words with a remainder of are invalid in an equation. Therefore, a quotient and a remainder can be written as a statement such as seven divided by two is three with a remainder of one, or the quotient is three and the remainder is one. It is mathematically correct to record the quotient and the remainder together at the top of the long division algorithm.
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