Common Core: Kindergarten Math : Decompose Numbers Less Than or Equal to 10 into Pairs: CCSS.Math.Content.K.OA.A.3

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

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Example Questions

Example Question #11 : Decompose Numbers Less Than Or Equal To 10 Into Pairs: Ccss.Math.Content.K.Oa.A.3

Which math problem equals \(\displaystyle 5+3=8?\)

 

Possible Answers:

\(\displaystyle 3+3=6\)

\(\displaystyle 2+4=6\)

\(\displaystyle 0+8=8\)

Correct answer:

\(\displaystyle 0+8=8\)

Explanation:

\(\displaystyle 5+3=8\) and \(\displaystyle 0+8=8\) both equal \(\displaystyle 8\) so they are equal. 

Example Question #12 : Decompose Numbers Less Than Or Equal To 10 Into Pairs: Ccss.Math.Content.K.Oa.A.3

Which math problem equals \(\displaystyle 5+5=10?\)

 

Possible Answers:

\(\displaystyle 2+7=9\)

\(\displaystyle 1+8=9\)

\(\displaystyle 3+7=10\)

Correct answer:

\(\displaystyle 3+7=10\)

Explanation:

\(\displaystyle 5+5=10\) and \(\displaystyle 3+7=10\) both equal \(\displaystyle 10\) so they are equal. 

Example Question #13 : Decompose Numbers Less Than Or Equal To 10 Into Pairs: Ccss.Math.Content.K.Oa.A.3

Which math problem equals \(\displaystyle 6+4=10?\)

 

Possible Answers:

\(\displaystyle 6+5=11\)

\(\displaystyle 2+7=9\)

\(\displaystyle 9+1=10\)

Correct answer:

\(\displaystyle 9+1=10\)

Explanation:

\(\displaystyle 6+4=10\) and \(\displaystyle 9+1=10\) both equal \(\displaystyle 10\) so they are equal. 

Example Question #14 : Decompose Numbers Less Than Or Equal To 10 Into Pairs: Ccss.Math.Content.K.Oa.A.3

Which math problem equals \(\displaystyle 4+5=9?\)

Possible Answers:

\(\displaystyle 7+2=9\)

\(\displaystyle 4+4=8\)

\(\displaystyle 5+2=7\)

Correct answer:

\(\displaystyle 7+2=9\)

Explanation:

\(\displaystyle 4+5=9\) and \(\displaystyle 7+2=9\) both equal \(\displaystyle 9\) so they are equal. 

Example Question #15 : Decompose Numbers Less Than Or Equal To 10 Into Pairs: Ccss.Math.Content.K.Oa.A.3

Which math problem equals \(\displaystyle 6+2=8?\)

 

Possible Answers:

\(\displaystyle 3+5=8\)

\(\displaystyle 7+2=9\)

\(\displaystyle 4+2=6\)

Correct answer:

\(\displaystyle 3+5=8\)

Explanation:

\(\displaystyle 6+2=8\) and \(\displaystyle 3+5=8\) both equal \(\displaystyle 8\) so they are equal. 

Example Question #16 : Decompose Numbers Less Than Or Equal To 10 Into Pairs: Ccss.Math.Content.K.Oa.A.3

Which math problem equals \(\displaystyle 3+4=7?\)

 

Possible Answers:

\(\displaystyle 3+3=6\)

\(\displaystyle 4+2=6\)

\(\displaystyle 5+2=7\)

Correct answer:

\(\displaystyle 5+2=7\)

Explanation:

\(\displaystyle 3+4=7\) and \(\displaystyle 5+2=7\) both equal \(\displaystyle 7\) so they are equal. 

Example Question #17 : Decompose Numbers Less Than Or Equal To 10 Into Pairs: Ccss.Math.Content.K.Oa.A.3

Which math problem equals \(\displaystyle 2+8=10?\)

 

Possible Answers:

\(\displaystyle 5+4=9\)

\(\displaystyle 5+5=10\)

\(\displaystyle 4+4=8\)

Correct answer:

\(\displaystyle 5+5=10\)

Explanation:

\(\displaystyle 2+8=10\) and \(\displaystyle 5+5=10\) both equal \(\displaystyle 10\) so they are equal. 

Example Question #18 : Decompose Numbers Less Than Or Equal To 10 Into Pairs: Ccss.Math.Content.K.Oa.A.3

Which math problem equals \(\displaystyle 3+3=6?\)

 

Possible Answers:

\(\displaystyle 1+5=6\)

\(\displaystyle 2+8=10\)

\(\displaystyle 1+7=8\)

Correct answer:

\(\displaystyle 1+5=6\)

Explanation:

\(\displaystyle 3+3=6\) and \(\displaystyle 1+5=6\) both equal \(\displaystyle 6\) so they are equal. 

Example Question #19 : Decompose Numbers Less Than Or Equal To 10 Into Pairs: Ccss.Math.Content.K.Oa.A.3

Which math problem equals \(\displaystyle 0+4=4?\)

 

Possible Answers:

\(\displaystyle 0+5=5\)

\(\displaystyle 2+2=4\)

\(\displaystyle 1+2=3\)

Correct answer:

\(\displaystyle 2+2=4\)

Explanation:

\(\displaystyle 0+4=4\) and \(\displaystyle 2+2=4\) both equal \(\displaystyle 4\) so they are equal. 

Example Question #20 : Decompose Numbers Less Than Or Equal To 10 Into Pairs: Ccss.Math.Content.K.Oa.A.3

Which math problem equals \(\displaystyle 1+1=2?\)

 

Possible Answers:

\(\displaystyle 2+0=2\)

\(\displaystyle 2+1=3\)

\(\displaystyle 1+3=4\)

Correct answer:

\(\displaystyle 2+0=2\)

Explanation:

\(\displaystyle 1+1=2\) and \(\displaystyle 2+0=2\) both equal \(\displaystyle 2\) so they are equal. 

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