Grade 4 - Numbers, Operations and Relationships
Standard 4.NOR.1.1.4 - Simplify both sides of the equation and find the missing number that makes the equation true.
Included Skills: Subtraction
Calculation techniques • Use a range of techniques to perform and check written and mental calculations of whole numbers including - estimation - building up and breaking down numbers - rounding off and compensating - doubling and halving - using a number line - using addition and subtraction as inverse operations - using multiplication and division as inverse operations