Estimate the answer to a calculation Solve addition and subtraction two-step Use rounding to check answers to and use inverse operations to check problems in contexts, deciding which calculations and determine, in the answers operations and methods to use and why context of a problem, levels of accuracy * I ** ** ** ** I Solve problems, including missing Solve addition and subtraction multi-step number problems, using number facts, problems in contexts, deciding which place value, and more complex operations and methods to use and why addition and subtraction ** * ** * ** I * G ** * G *** * * G * I ** ** ** G **
Estimate the answer to a calculation and use inverse operations to check answers Solve addition and subtraction two-step problems in contexts, deciding which operations and methods to use and why * I ** ** ** ** I Use rounding to check answers to calculations and determine, in the context of a problem, levels of accuracy Solve problems, including missing number problems, using number facts, place value, and more complex addition and subtraction * * * G * G * * G * I ** ** ** G ** Solve addition and subtraction multi-step problems in contexts, deciding which operations and methods to use and why ** ** ** I ** ***