Grade 4 - Operations and Algebraic Thinking
Standard 4.OA.A.3 - Choose numbers that satisfy the results of addition and subtraction equations.
Included Skills: Algebra
Solve multistep word problems posed with whole numbers and having whole-number answers using the four operations, including problems in which remainders must be interpreted. Represent these problems using equations with a letter standing for the unknown quantity. Assess the reasonableness of answers using mental computation and estimation strategies including rounding.