Common Core: Kindergarten Math : Number & Operations in Base Ten

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

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Example Questions

Example Question #1 : Place Value: Ccss.Math.Content.K.Nbt.A.1

\displaystyle 10+ _________\displaystyle =11

Possible Answers:

\displaystyle 1

\displaystyle 3

\displaystyle 2

Correct answer:

\displaystyle 1

Explanation:

To find the missing piece of an addition problem, we can take the biggest number minus the smallest number. 

\displaystyle \frac{\begin{array}[b]{r}11\\ -\ 10\end{array}}{ \ \ \ \ \ \space 1}

We can start at \displaystyle 11 and count back \displaystyle 10.

\displaystyle 11,10,9,8,7,6,5,4,3,2,1

Example Question #2 : Place Value: Ccss.Math.Content.K.Nbt.A.1

\displaystyle 10+ _________\displaystyle =12

 

Possible Answers:

\displaystyle 1

\displaystyle 2

\displaystyle 3

Correct answer:

\displaystyle 2

Explanation:

To find the missing piece of an addition problem, we can take the biggest number minus the smallest number. 

\displaystyle \frac{\begin{array}[b]{r}12\\ -\ 10\end{array}}{ \ \ \ \ \ \space 2}

We can start at \displaystyle 12 and count back \displaystyle 10.

\displaystyle 12,11,10,9,8,7,6,5,4,3,2

Example Question #3 : Place Value: Ccss.Math.Content.K.Nbt.A.1

\displaystyle 10+ _________\displaystyle =13

Possible Answers:

\displaystyle 3

\displaystyle 4

\displaystyle 5

Correct answer:

\displaystyle 3

Explanation:

To find the missing piece of an addition problem, we can take the biggest number minus the smallest number. 

\displaystyle \frac{\begin{array}[b]{r}13\\ -\ 10\end{array}}{ \ \ \ \ \ \space 3}

We can start at \displaystyle 13 and count back \displaystyle 10.

\displaystyle 13,12,11,10,9,8,7,6,5,4,3

Example Question #4 : Place Value: Ccss.Math.Content.K.Nbt.A.1

\displaystyle 10+ _________\displaystyle =14

 

Possible Answers:

\displaystyle 5

\displaystyle 4

\displaystyle 3

Correct answer:

\displaystyle 4

Explanation:

To find the missing piece of an addition problem, we can take the biggest number minus the smallest number. 

\displaystyle \frac{\begin{array}[b]{r}14\\ -\ 10\end{array}}{ \ \ \ \ \ \space 4}

We can start at \displaystyle 14 and count back \displaystyle 10.

\displaystyle 14,13,12,11,10,9,8,7,6,5,4

Example Question #4 : Place Value: Ccss.Math.Content.K.Nbt.A.1

\displaystyle 10+ _________\displaystyle =15

Possible Answers:

\displaystyle 3

\displaystyle 4

\displaystyle 5

Correct answer:

\displaystyle 5

Explanation:

To find the missing piece of an addition problem, we can take the biggest number minus the smallest number. 

\displaystyle \frac{\begin{array}[b]{r}15\\ -\ 10\end{array}}{ \ \ \ \ \ \space 5}

We can start at \displaystyle 15 and count back \displaystyle 10.

\displaystyle 15,14,13,12,11,10,9,8,7,6,5

Example Question #5 : Place Value: Ccss.Math.Content.K.Nbt.A.1

\displaystyle 10+ _________\displaystyle =16

 

Possible Answers:

\displaystyle 7

\displaystyle 6

\displaystyle 8

Correct answer:

\displaystyle 6

Explanation:

To find the missing piece of an addition problem, we can take the biggest number minus the smallest number. 

\displaystyle \frac{\begin{array}[b]{r}16\\ -\ 10\end{array}}{ \ \ \ \ \ \space 6}

We can start at \displaystyle 16 and count back \displaystyle 10.

\displaystyle 16,15,14,13,12,11,10,9,8,7,6

Example Question #6 : Place Value: Ccss.Math.Content.K.Nbt.A.1

\displaystyle 10+ _________\displaystyle =17

 

Possible Answers:

\displaystyle 5

\displaystyle 7

\displaystyle 6

Correct answer:

\displaystyle 7

Explanation:

To find the missing piece of an addition problem, we can take the biggest number minus the smallest number. 

\displaystyle \frac{\begin{array}[b]{r}17\\ -\ 10\end{array}}{ \ \ \ \ \ \space 7}

We can start at \displaystyle 17 and count back \displaystyle 10.

\displaystyle 17,16,15,14,13,12,11,10,9,8,7

Example Question #7 : Place Value: Ccss.Math.Content.K.Nbt.A.1

\displaystyle 10+ _________\displaystyle =18

Possible Answers:

\displaystyle 9

\displaystyle 7

\displaystyle 8

Correct answer:

\displaystyle 8

Explanation:

To find the missing piece of an addition problem, we can take the biggest number minus the smallest number. 

\displaystyle \frac{\begin{array}[b]{r}18\\ -\ 10\end{array}}{ \ \ \ \ \ \space 8}

We can start at \displaystyle 18 and count back \displaystyle 10.

\displaystyle 18,17,16,15,14,13,12,11,10,9,8

Example Question #8 : Place Value: Ccss.Math.Content.K.Nbt.A.1

\displaystyle 10+ _________\displaystyle =19

 

Possible Answers:

\displaystyle 10

\displaystyle 8

\displaystyle 9

Correct answer:

\displaystyle 9

Explanation:

To find the missing piece of an addition problem, we can take the biggest number minus the smallest number. 

\displaystyle \frac{\begin{array}[b]{r}19\\ -\ 10\end{array}}{ \ \ \ \ \ \space 9}

We can start at \displaystyle 19 and count back \displaystyle 10.

\displaystyle 19,18,17,16,15,14,13,12,11,10,9

Example Question #9 : Place Value: Ccss.Math.Content.K.Nbt.A.1

\displaystyle 10+ _________\displaystyle =11

 

Possible Answers:

\displaystyle 1

\displaystyle 3

\displaystyle 2

Correct answer:

\displaystyle 1

Explanation:

To find the missing piece of an addition problem, we can take the biggest number minus the smallest number. 

\displaystyle \frac{\begin{array}[b]{r}11\\ -\ 10\end{array}}{ \ \ \ \ \ \space 1}

We can start at \displaystyle 11 and count back \displaystyle 10.

\displaystyle 11,10,9,8,7,6,5,4,3,2,1

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