Common Core: 1st Grade Math : Representing and Solving Addition and Subtraction Problems

Study concepts, example questions & explanations for Common Core: 1st Grade Math

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Example Questions

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Example Question #81 : Representing And Solving Addition And Subtraction Problems

At Linda’s birthday party there were  peperoni pizzas,  sausage pizzas, and  cheese pizzas. How many total pizzas were there? 

Possible Answers:

Correct answer:

Explanation:

This is an addition problem because we want to know how many total pizzas we have when we put the pizzas altogether. When we put things together we are adding. 

We can start at  and count up .

Then we can count up .

Example Question #82 : Representing And Solving Addition And Subtraction Problems

Lauren has  pencils,  markers, and  notebooks in her backpack. How many total items does Lauren have in her backpack? 

Possible Answers:

Correct answer:

Explanation:

This is an addition problem because we want to know how many total supplies Lauren has in her backpack when we put everything together. When we put things together we are adding. 

We can start at  and count up .

Then we can count up .

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