2nd GradeMathOperations and Algebraic Thinking
2.OA.2
Fluently add and subtract within 20 using mental strategies. By end of Grade 2, know from memory all sums of two one-digit numbers.
17 Free Worksheets for 2.OA.2
All worksheets below are aligned to CCSS 2.OA.2 and printable as PDF.
Related 2nd Grade Standards (Operations and Algebraic Thinking)
2.OA.1Use addition and subtraction within 100 to solve one- and two-step word problems involving situations of adding to, taking from, putting together, taking apart, and comparing.2.OA.4Use addition to find the total number of objects arranged in rectangular arrays with up to 5 rows and up to 5 columns; write an equation to express the total as a sum of equal addends.2.OA.A.1Use addition and subtraction within 100 to solve one- and two-step word problems.2.OA.C.3Determine whether a group of objects (up to 20) has an odd or even number of members, e.g., by pairing objects or counting them by 2s; write an equation to express an even number as a sum of two equal addends.2.OA.C.4Use addition to find the total number of objects arranged in rectangular arrays with up to 5 rows and up to 5 columns; write an equation to express the total as a sum of equal addends.