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Common Core: 1st Grade Math : Number & Operations in Base Ten

Study concepts, example questions & explanations for Common Core: 1st Grade Math

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All Common Core: 1st Grade Math Resources

7 Diagnostic Tests 180 Practice Tests Question of the Day Flashcards Learn by Concept

Example Questions

Example Question #62 : Place Value And Properties Of Operations To Add And Subtract

$\frac{\begin{array}[b]{r}30\\ -\ 20\end{array}}{ \ \ \space}$

Possible Answers:

Correct answer:

Explanation:

$\frac{\begin{array}[b]{r}30\\ -\ 20\end{array}}{ \ \ \space}$

When we subtract two digit numbers, we always start with the ones place, on the right, and work our way to the left.

0-0=0

3-2=1

$\frac{\begin{array}[b]{r}30\\ -\ 20\end{array}}{ \ \ \ \space10}$

Report an Error

Example Question #2 : Subtract Multiples Of 10 From Multiples Of 10: Ccss.Math.Content.1.Nbt.C.6

$\frac{\begin{array}[b]{r}30\\ -\ 10\end{array}}{ \ \ \space}$

Possible Answers:

Correct answer:

Explanation:

$\frac{\begin{array}[b]{r}30\\ -\ 10\end{array}}{ \ \ \space}$

When we subtract two digit numbers, we always start with the ones place, on the right, and work our way to the left.

0-0=0

3-1=2

$\frac{\begin{array}[b]{r}30\\ -\ 10\end{array}}{ \ \ \ \space20}$

Report an Error

Example Question #3 : Subtract Multiples Of 10 From Multiples Of 10: Ccss.Math.Content.1.Nbt.C.6

$\frac{\begin{array}[b]{r}90\\ -\ 50\end{array}}{ \ \ \space}$

Possible Answers:

Correct answer:

Explanation:

$\frac{\begin{array}[b]{r}90\\ -\ 50\end{array}}{ \ \ \space}$

When we subtract two digit numbers, we always start with the ones place, on the right, and work our way to the left.

0-0=0

9-5=4

$\frac{\begin{array}[b]{r}90\\ -\ 50\end{array}}{ \ \ \ \space40}$

Report an Error

Example Question #10 : Subtract Multiples Of 10 From Multiples Of 10: Ccss.Math.Content.1.Nbt.C.6

$\frac{\begin{array}[b]{r}80\\ -\ 60\end{array}}{ \ \ \space}$

Possible Answers:

Correct answer:

Explanation:

$\frac{\begin{array}[b]{r}80\\ -\ 60\end{array}}{ \ \ \space}$

When we subtract two digit numbers, we always start with the ones place, on the right, and work our way to the left.

0-0=0

8-6=2

$\frac{\begin{array}[b]{r}80\\ -\ 60\end{array}}{ \ \ \ \space20}$

Report an Error

Example Question #1142 : Common Core Math: Grade 1

$\frac{\begin{array}[b]{r}70\\ -\ 40\end{array}}{ \ \ \space}$

Possible Answers:

Correct answer:

Explanation:

$\frac{\begin{array}[b]{r}70\\ -\ 40\end{array}}{ \ \ \space}$

When we subtract two digit numbers, we always start with the ones place, on the right, and work our way to the left.

0-0=0

7-4=3

$\frac{\begin{array}[b]{r}70\\ -\ 40\end{array}}{ \ \ \ \space30}$

Report an Error

Example Question #72 : Place Value And Properties Of Operations To Add And Subtract

$\frac{\begin{array}[b]{r}60\\ -\ 50\end{array}}{ \ \ \space}$

Possible Answers:

Correct answer:

Explanation:

$\frac{\begin{array}[b]{r}60\\ -\ 50\end{array}}{ \ \ \space}$

When we subtract two digit numbers, we always start with the ones place, on the right, and work our way to the left.

0-0=0

6-5=1

$\frac{\begin{array}[b]{r}60\\ -\ 50\end{array}}{ \ \ \ \space10}$

Report an Error

Example Question #11 : Subtract Multiples Of 10 From Multiples Of 10: Ccss.Math.Content.1.Nbt.C.6

$\frac{\begin{array}[b]{r}90\\ -\ 20\end{array}}{ \ \ \space}$

Possible Answers:

Correct answer:

Explanation:

$\frac{\begin{array}[b]{r}90\\ -\ 20\end{array}}{ \ \ \space}$

When we subtract two digit numbers, we always start with the ones place, on the right, and work our way to the left.

0-0=0

9-2=7

$\frac{\begin{array}[b]{r}90\\ -\ 20\end{array}}{ \ \ \ \space70}$

Report an Error

Example Question #74 : Place Value And Properties Of Operations To Add And Subtract

$\frac{\begin{array}[b]{r}80\\ -\ 40\end{array}}{ \ \ \space}$

Possible Answers:

Correct answer:

Explanation:

$\frac{\begin{array}[b]{r}80\\ -\ 40\end{array}}{ \ \ \space}$

When we subtract two digit numbers, we always start with the ones place, on the right, and work our way to the left.

0-0=0

8-4=4

$\frac{\begin{array}[b]{r}80\\ -\ 40\end{array}}{ \ \ \ \space40}$

Report an Error

Example Question #75 : Place Value And Properties Of Operations To Add And Subtract

$\frac{\begin{array}[b]{r}70\\ -\ 10\end{array}}{ \ \ \space}$

Possible Answers:

Correct answer:

Explanation:

$\frac{\begin{array}[b]{r}70\\ -\ 10\end{array}}{ \ \ \space}$

When we subtract two digit numbers, we always start with the ones place, on the right, and work our way to the left.

0-0=0

7-1=6

$\frac{\begin{array}[b]{r}70\\ -\ 10\end{array}}{ \ \ \ \ \space60}$

Report an Error

Example Question #334 : Number & Operations In Base Ten

$\frac{\begin{array}[b]{r}60\\ -\ 20\end{array}}{ \ \ \space}$

Possible Answers:

Correct answer:

Explanation:

$\frac{\begin{array}[b]{r}60\\ -\ 20\end{array}}{ \ \ \space}$

When we subtract two digit numbers, we always start with the ones place, on the right, and work our way to the left.

0-0=0

6-2=4

$\frac{\begin{array}[b]{r}60\\ -\ 20\end{array}}{ \ \ \ \space40}$

Report an Error

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All Common Core: 1st Grade Math Resources

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Common Core: 1st Grade Math : Number & Operations in Base Ten

Study concepts, example questions & explanations for Common Core: 1st Grade Math

All Common Core: 1st Grade Math Resources

Example Questions

Example Question #62 : Place Value And Properties Of Operations To Add And Subtract

Example Question #2 : Subtract Multiples Of 10 From Multiples Of 10: Ccss.Math.Content.1.Nbt.C.6

Example Question #3 : Subtract Multiples Of 10 From Multiples Of 10: Ccss.Math.Content.1.Nbt.C.6

Example Question #10 : Subtract Multiples Of 10 From Multiples Of 10: Ccss.Math.Content.1.Nbt.C.6

Example Question #1142 : Common Core Math: Grade 1

Example Question #72 : Place Value And Properties Of Operations To Add And Subtract

Example Question #11 : Subtract Multiples Of 10 From Multiples Of 10: Ccss.Math.Content.1.Nbt.C.6

Example Question #74 : Place Value And Properties Of Operations To Add And Subtract

Example Question #75 : Place Value And Properties Of Operations To Add And Subtract

Example Question #334 : Number & Operations In Base Ten

All Common Core: 1st Grade Math Resources

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