Second Grade Operations and Algebraic Thinking 

One and two step word problems, addition of objects in sets and able to fluently solve simple addition and subtraction. Just click on the blue links to display or print pdfs.  
Standards 
Practice
Pages


Represent and solve problems involving addition and subtraction  Cluster 1 

Standard 2.OA.1: Use addition and subtraction within 100 to solve one and twostep word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using drawings and equations with a symbol for the unknown number to represent the problem.  Add Objects Answers 2.OA.2.a 
Subtraction Word Problems Answers 2.OA.2.b 
Add and subtract within 20  Cluster 2 

Standard 2.OA.2: Fluently add and subtract within 20 using mental strategies. By end of Grade 2, know from memory all sums of two onedigit numbers.  Add 1s Answers 2.OA.2.a 
Subtract 2s Answers 2.OA.2.b 
Work with equal groups of objects to gain foundations for multiplication  Cluster 3 

Standard 2.OA.3: Determine 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 toexpress an even number as a sum of two equal addends.  OddEven Objects Answers 2.OA.3.a 
Even Equations Answers 2.OA.3.b 
Standard 2.OA.4: Use 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 sumof equal addends.  Array Equations Answers 2.OA.4.a 
Array Equations Answers 2.OA.4.b 