Grade 2 - Computational Fluency
Standard 2.CF.2.3 - Practice subtracting zero and all from a number. Recognize the similar numbers in subtracting all and zero.
Included Skills: Subtraction
addition and subtraction facts to 20 (introduction of computational strategies) • adding and subtracting numbers to 20 • fluency with math strategies for addition and subtraction (e.g., making or bridging 10, decomposing, identifying related doubles, adding on to find the difference)