Primary 3 - Number and Algebra: Whole Numbers
Standard 3.NA-WN.2 - Find the missing number of a subtraction sentence.
Included Skills: Subtraction
Addition and subtraction • 2.1 addition and subtraction of numbers up to 4 digits, • 2.2 use of the terms 'sum' and 'difference', • 2.3 solving up to 2-step word problems involving addition and subtraction.