CCSS.2.OA.B.2Grade 2 · Operations and Algebraic Thinking
Fluently add and subtract within 20 using mental strategies; by end of Grade 2, know from memory all sums of two one-digit numbers
Skills that meet it
3 skills- Apply Mental Strategies to Add within 20Grade 2
- Apply Mental Strategies to Subtract within 20Grade 2
- Know Addition and Subtraction Facts from Memory within 20Grade 2
Standard text is quoted from the Common Core State Standards.