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 #71 : Operations & Algebraic Thinking

Which math problem equals 

 

Possible Answers:

Correct answer:

Explanation:

 and  both equal  so they are equal. 

Example Question #21 : Decompose Numbers Less Than Or Equal To 10 Into Pairs: Ccss.Math.Content.K.Oa.A.3

Which math problem equals 

 

Possible Answers:

Correct answer:

Explanation:

 and  both equal  so they are equal. 

Example Question #22 : Decompose Numbers Less Than Or Equal To 10 Into Pairs: Ccss.Math.Content.K.Oa.A.3

Which math problem equals 

 

Possible Answers:

Correct answer:

Explanation:

 and  both equal  so they are equal. 

Example Question #71 : Understanding Addition And Subtraction

Which math problem equals 

 

Possible Answers:

Correct answer:

Explanation:

 and  both equal  so they are equal. 

Example Question #24 : Decompose Numbers Less Than Or Equal To 10 Into Pairs: Ccss.Math.Content.K.Oa.A.3

Which math problem equals 

Possible Answers:

Correct answer:

Explanation:

 and  both equal  so they are equal. 

Example Question #1 : Find The Number That Makes 10 When Added To Any Number From 1 To 9: Ccss.Math.Content.K.Oa.A.4

How many triangles do I need to add to the  triangles below so that I have  triangles? 

Screen shot 2015 08 24 at 3.11.18 pm

Possible Answers:

Correct answer:

Explanation:

, so we need to add  more triangles to the  triangles to have 

Screen shot 2015 08 24 at 3.12.21 pm

Example Question #2 : Find The Number That Makes 10 When Added To Any Number From 1 To 9: Ccss.Math.Content.K.Oa.A.4

How many triangles do I need to add to the  triangles below so that I have  triangles? 

Screen shot 2015 08 24 at 3.14.08 pm

Possible Answers:

Correct answer:

Explanation:

, so we need to add  more triangles to the  triangles to have 

Screen shot 2015 08 24 at 3.14.13 pm

Example Question #1 : Find The Number That Makes 10 When Added To Any Number From 1 To 9: Ccss.Math.Content.K.Oa.A.4

How many triangles do I need to add to the  triangles below so that I have  triangles? 


Screen shot 2015 08 24 at 3.16.23 pm

Possible Answers:

Correct answer:

Explanation:

, so we need to add  more triangles to the  triangles to have 

Screen shot 2015 08 24 at 3.16.28 pm

Example Question #4 : Find The Number That Makes 10 When Added To Any Number From 1 To 9: Ccss.Math.Content.K.Oa.A.4

How many triangles do I need to add to the  triangles below so that I have  triangles? 

Screen shot 2015 08 24 at 3.18.27 pm

 

Possible Answers:

Correct answer:

Explanation:

, so we need to add  more triangles to the  triangles to have 

Screen shot 2015 08 24 at 3.18.33 pm

Example Question #5 : Find The Number That Makes 10 When Added To Any Number From 1 To 9: Ccss.Math.Content.K.Oa.A.4

How many triangles do I need to add to the  triangles below so that I have  triangles? 

Screen shot 2015 08 24 at 3.22.41 pm

Possible Answers:

Correct answer:

Explanation:

, so we need to add  more triangles to the  triangles to have 


Screen shot 2015 08 24 at 3.22.49 pm

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