Common Core: Kindergarten Math : Understanding Addition and Subtraction

Study concepts, example questions & explanations for Common Core: Kindergarten Math

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Example Questions

Example Question #67 : Knowing How To Subtract

Use the triangles Screen shot 2015 08 20 at 11.07.59 ambelow to help you answer the subtraction problem. 

Screen shot 2015 08 24 at 10.34.27 am

Possible Answers:

Correct answer:

Explanation:

We have  triangles and we want to subtract  triangles, which means the same thing as take them away. We can cross off the  triangles that we are subtracting, and count the number that we have left. In this case we have  triangles left. Subtraction is like counting backwards. We can start at  and count back .

Screen shot 2015 08 24 at 10.36.38 am

Example Question #980 : Common Core Math: Kindergarten

Use the triangles Screen shot 2015 08 20 at 11.07.59 ambelow to help you answer the subtraction problem. 

Screen shot 2015 08 24 at 11.03.33 am

Possible Answers:

Correct answer:

Explanation:

We have  triangles and we want to subtract  triangles, which means the same thing as take them away. We can cross off the  triangles that we are subtracting, and count the number that we have left. In this case we have  triangles left. Subtraction is like counting backwards. We can start at  and count back .

Screen shot 2015 08 24 at 11.04.15 am

Example Question #68 : Knowing How To Subtract

Use the triangles Screen shot 2015 08 20 at 11.07.59 ambelow to help you answer the subtraction problem. 

Screen shot 2015 08 24 at 10.59.29 am

Possible Answers:

Correct answer:

Explanation:

We have  triangles and we want to subtract  triangles, which means the same thing as take them away. We can cross off the  triangles that we are subtracting, and count the number that we have left. In this case we have  triangle left. Subtraction is like counting backwards. We can start at  and count back .

Screen shot 2015 08 24 at 11.00.08 am

Example Question #71 : Knowing How To Subtract

Use the triangles Screen shot 2015 08 20 at 11.07.59 ambelow to help you answer the subtraction problem. 

Screen shot 2015 08 24 at 11.17.05 am

Possible Answers:

Correct answer:

Explanation:

We have  triangles and we want to subtract  triangles, which means the same thing as take them away. We can cross off the  triangles that we are subtracting, and count the number that we have left. In this case we have  triangles left. Subtraction is like counting backwards. We can start at  and count back .

Screen shot 2015 08 24 at 11.17.39 am

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