North Carolina Standard Course of Study
NC.4.NBT. Number and Operations in Base Ten
Use place value understanding and properties of operations to perform multi-digit arithmetic.
NC.4.NBT.5. Multiply a whole number of up to three digits by a one-digit whole number, and multiply up to two two-digit numbers with place value understanding using area models, partial products, and the properties of operations. Use models to make connections and develop the algorithm.
NC.4.NBT.6. Find whole-number quotients and remainders with up to three-digit dividends and one-digit divisors with place value understanding using rectangular arrays, area models, repeated subtraction, partial quotients, properties of operations, and/or the relationship between multiplication and division.