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 #11 : Understanding Addition And Subtraction

Eric has \(\displaystyle 1\) square and Drew has \(\displaystyle 6\) squares. How many squares do they have altogether? 

Possible Answers:

\(\displaystyle 7\)

\(\displaystyle 5\)

\(\displaystyle 6\)

Correct answer:

\(\displaystyle 7\)

Explanation:

\(\displaystyle 1+6=7\)

Screen shot 2015 08 27 at 11.27.31 am

If we count all the squares together we have \(\displaystyle 7\) squares. 

Example Question #12 : Understanding Addition And Subtraction

Nancy has \(\displaystyle 1\) square and Mark has \(\displaystyle 5\) squares. How many squares do they have altogether? 

Possible Answers:

\(\displaystyle 6\)

\(\displaystyle 7\)

\(\displaystyle 8\)

Correct answer:

\(\displaystyle 6\)

Explanation:

\(\displaystyle 1+5=6\)

Screen shot 2015 08 27 at 11.26.16 am

If we count all the squares together we have \(\displaystyle 6\) squares. 

Example Question #11 : Understanding Addition And Subtraction

Alison has \(\displaystyle 1\) square and David has \(\displaystyle 4\) squares. How many squares do they have altogether? 

Possible Answers:

\(\displaystyle 4\)

\(\displaystyle 3\)

\(\displaystyle 5\)

Correct answer:

\(\displaystyle 5\)

Explanation:

\(\displaystyle 1+4=5\)

Screen shot 2015 08 27 at 11.24.28 am

If we count all the squares together we have \(\displaystyle 5\) squares. 

Example Question #12 : Understanding Addition And Subtraction

Tammy has \(\displaystyle 1\) square and Tom has \(\displaystyle 3\) squares. How many squares do they have altogether? 

Possible Answers:

\(\displaystyle 5\)

\(\displaystyle 6\)

\(\displaystyle 4\)

Correct answer:

\(\displaystyle 4\)

Explanation:

\(\displaystyle 1+3=4\)

Screen shot 2015 08 27 at 11.23.03 am

If we count all the squares together we have \(\displaystyle 4\) squares. 

Example Question #13 : Understanding Addition And Subtraction

Jessica has \(\displaystyle 1\) square and Megan has \(\displaystyle 1\) square. How many squares do they have altogether?

Possible Answers:

\(\displaystyle 1\)

\(\displaystyle 0\)

\(\displaystyle 2\)

Correct answer:

\(\displaystyle 2\)

Explanation:

\(\displaystyle 1+1=2\)

Screen shot 2015 08 27 at 11.18.15 am

If we count all the squares together we have \(\displaystyle 2\) squares. 

Example Question #14 : Understanding Addition And Subtraction

Cameron has \(\displaystyle 3\) squares and Chuck has \(\displaystyle 4\) squares. How many squares do they have altogether?

 

Possible Answers:

\(\displaystyle 6\)

\(\displaystyle 7\)

\(\displaystyle 5\)

Correct answer:

\(\displaystyle 7\)

Explanation:

\(\displaystyle 3+4=7\)

Screen shot 2015 08 27 at 2.09.57 pm

If we count all the squares together we have \(\displaystyle 7\) squares. 

Example Question #12 : Understanding Addition And Subtraction

Natalie has \(\displaystyle 3\) squares and Ashley has \(\displaystyle 3\) squares. How many squares do they have altogether?

 

Possible Answers:

\(\displaystyle 8\)

\(\displaystyle 7\)

\(\displaystyle 6\)

Correct answer:

\(\displaystyle 6\)

Explanation:

\(\displaystyle 3+3=6\)

Screen shot 2015 08 27 at 2.08.59 pm

If we count all the squares together we have \(\displaystyle 6\) squares. 

Example Question #16 : Understanding Addition And Subtraction

Shelly has \(\displaystyle 3\) squares and Linda has \(\displaystyle 1\) square. How many squares do they have altogether?

 

Possible Answers:

\(\displaystyle 5\)

\(\displaystyle 6\)

\(\displaystyle 4\)

Correct answer:

\(\displaystyle 4\)

Explanation:

\(\displaystyle 3+1=4\)

Screen shot 2015 08 27 at 2.07.44 pm

If we count all the squares together we have \(\displaystyle 4\) squares. 

Example Question #17 : Understanding Addition And Subtraction

Molly has \(\displaystyle 3\) squares and John has \(\displaystyle 2\) squares. How many squares do they have altogether?

Possible Answers:

\(\displaystyle 6\)

\(\displaystyle 5\)

\(\displaystyle 4\)

Correct answer:

\(\displaystyle 5\)

Explanation:

\(\displaystyle 3+2=5\)

Screen shot 2015 08 27 at 2.08.19 pm

If we count all the squares together we have \(\displaystyle 5\) squares. 

Example Question #18 : Understanding Addition And Subtraction

Jenny has \(\displaystyle 3\) squares and Joe has \(\displaystyle 0\) squares. How many squares do they have altogether?

 

Possible Answers:

\(\displaystyle 4\)

\(\displaystyle 2\)

\(\displaystyle 3\)

Correct answer:

\(\displaystyle 3\)

Explanation:

\(\displaystyle 3+0=3\)

Screen shot 2015 08 27 at 2.07.01 pm

If we count all the squares together we have \(\displaystyle 3\) squares. 

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