## ◂Math Worksheets and Study Guides Second Grade. Story Problems

### The resources above correspond to the standards listed below:

#### Kentucky Academic Standards

Operations and Algebraic Thinking
Cluster: Represent and solve problems involving addition and subtraction.
KY.2.OA.1. Use 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, with unknowns in all positions, by using drawings and equations with a symbol for the unknown number to represent the problem. (MP.1, MP.2 and MP.4)
Cluster: Add and subtract within 20.
KY.2.OA.2. Fluently add and subtract within 20 using mental strategies. (MP.2, MP.7, MP.8)
Numbers and Operations in Base Ten
Cluster: Use place value understanding and properties of operations to add and subtract.
KY.2.NBT.5. Fluently add and subtract within 100 using strategies based on place value, properties of operations and/or the relationship between addition and subtraction. (MP.2, MP.8)
KY.2.NBT.6. Add up to four two-digit numbers using strategies based on place value and properties of operations. (MP.2, MP.7)
KY.2.NBT.7. Add and subtract within 1000. (MP.1, MP.5)
KY.2.NBT.7.a. Represent and solve addition and subtraction problems using…
concrete models or drawings
strategies based on place value
relate drawings and strategies to expressions or equations
KY.2.NBT.9. Explain why addition and subtraction strategies work, using place value and the properties of operations. (MP.3, MP.7)