Topic: Operations & Algebraic Thinking Solve multi-step whole number problems involving the four operations and variables and using estimation to interpret the reasonableness of the answer. - Solve whole number division problems involving variables in which remainders need to be interpreted, and justify the solution. - Find whole-number quotients and remainders with up to four-digit dividends and one-digit divisors, and justify the solution. - Use words or mathematical symbols to express a rule
