Common Core: 2nd Grade Math : Operations & Algebraic Thinking

Study concepts, example questions & explanations for Common Core: 2nd Grade Math

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Example Questions

Example Question #121 : How To Add

Tracy picked  strawberries from a bush in her yard and  strawberries from her neighbor's bush. How many strawberries does she have? 

Possible Answers:

Correct answer:

Explanation:

This is an addition problem because we want to know how many total strawberries Tracy picked all together. We can either add  or

Example Question #904 : Operations

Zack ate  pieces of chocolate at lunch and  pieces of chocolate after dinner. How many pieces did he eat? 

Possible Answers:

Correct answer:

Explanation:

This is an addition problem because we want to know how many total pieces of chocolate Zack ate all together. We can add  or  

Example Question #905 : Operations

The toy store has  black balls and  red balls. How many total balls do they have? 

Possible Answers:

Correct answer:

Explanation:

This is an addition problem because we want to know how many total balls the store has all together. We can add  or 

Example Question #12 : Using Addition Within 100 To Solve Word Problems

Lucy is packing a bag for a trip. So far she has  t-shirts and  pairs of shorts.  How many pieces of clothing does she have all together? 

Possible Answers:

Correct answer:

Explanation:

This is an addition problem because we want to know how many total pieces of clothing Lucy is packing all together. We can either add  or 

Example Question #906 : Operations

Jeff needs to collect leaves for a school project. He picked up  leaves in his front yard and  leaves in his backyard. How many leaves has he collected? 

Possible Answers:

Correct answer:

Explanation:

This is an addition problem because we want to know how many total leaves Jeff has collected all together. We can either add  or 

Example Question #122 : How To Add

Tom and Tim both have piggy banks in their rooms. Tom has 47 coins in his piggy bank and Tim has 42. How many coins do they have if they put their coins together? 

Possible Answers:

Correct answer:

Explanation:

This is an addition problem because we want to know how many total coins Tom and Tim have together. We can either add  or  

Example Question #12 : Using Addition Within 100 To Solve Word Problems

A furniture store has  tables for sale and  chairs for sale. How many total things do they have for sale? 

Possible Answers:

Correct answer:

Explanation:

This is an addition problem because we want to know how many total things the furniture store is selling all together. We can either add  or  

Example Question #15 : Using Addition Within 100 To Solve Word Problems

A candy store has  blue gumballs and  yellow gumballs. How many total gumballs does the store have? 

Possible Answers:

 

Correct answer:

Explanation:

This is an addition problem because we want to know how many total gumballs the store has all together. We can either add  or

Example Question #21 : Using Addition Within 100 To Solve Word Problems

The rose bush has  hot pink roses and  light pink roses. How many total roses does the bush have? 

Possible Answers:

Correct answer:

Explanation:

This is an addition problem because we want to know how many total roses are on the bush all together. We can either add  or  

Example Question #22 : Using Addition Within 100 To Solve Word Problems

The clown is holding  balloons in one hand and  balloons in his other hand. How many total balloons does the clown have?

Possible Answers:

Correct answer:

Explanation:

This is an addition problem because we want to know how many total balloons the clown has all together. We can either add  or 

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