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Common Core: 1st Grade Math : Place Value and Properties of Operations to Add and Subtract

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

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

$\frac{\begin{array}[b]{r}90\\ -\ 10\end{array}}{ \ \ \space}$

Possible Answers:

100

Correct answer:

Explanation:

$\frac{\begin{array}[b]{r}90\\ -\ 10\end{array}}{ \ \ \space}$

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

9-1=8

$\frac{\begin{array}[b]{r}90\\ -\ 10\end{array}}{ \ \ \ \space80}$

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

$\frac{\begin{array}[b]{r}80\\ -\ 30\end{array}}{ \ \ \space}$

Possible Answers:

Correct answer:

Explanation:

$\frac{\begin{array}[b]{r}80\\ -\ 30\end{array}}{ \ \ \space}$

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

8-3=5

$\frac{\begin{array}[b]{r}80\\ -\ 30\end{array}}{ \ \ \ \space50}$

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

Solve the following:

$\frac{\begin{array}[b]{r}70\\ -\ 20\end{array}}{ \ \ \space}$

Possible Answers:

Correct answer:

Explanation:

$\frac{\begin{array}[b]{r}70\\ -\ 20\end{array}}{ \ \ \space}$

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

7-2=5

$\frac{\begin{array}[b]{r}70\\ -\ 20\end{array}}{ \ \ \ \space50}$

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Example Question #4 : Subtract Multiples Of 10 From Multiples Of 10: Ccss.Math.Content.1.Nbt.C.6

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

Possible Answers:

Correct answer:

Explanation:

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

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

6-6=0

$\frac{\begin{array}[b]{r}60\\ -\ 60\end{array}}{ \ \ \ \ \ \space0}$

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Example Question #1131 : Common Core Math: Grade 1

$\frac{\begin{array}[b]{r}50\\ -\ 40\end{array}}{ \ \ \space}$

Possible Answers:

Correct answer:

Explanation:

$\frac{\begin{array}[b]{r}50\\ -\ 40\end{array}}{ \ \ \space}$

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

5-4=1

$\frac{\begin{array}[b]{r}50\\ -\ 40\end{array}}{ \ \ \ \space10}$

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

$\frac{\begin{array}[b]{r}40\\ -\ 10\end{array}}{ \ \ \space}$

Possible Answers:

Correct answer:

Explanation:

$\frac{\begin{array}[b]{r}40\\ -\ 10\end{array}}{ \ \ \space}$

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

4-1=3

$\frac{\begin{array}[b]{r}40\\ -\ 10\end{array}}{ \ \ \ \space30}$

Report an Error

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

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

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 #8 : 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 #9 : 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

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All Common Core: 1st Grade Math Resources

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Common Core: 1st Grade Math : Place Value and Properties of Operations to Add and Subtract

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

All Common Core: 1st Grade Math Resources

Example Questions

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

Example Question #1 : 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 #4 : Subtract Multiples Of 10 From Multiples Of 10: Ccss.Math.Content.1.Nbt.C.6

Example Question #1131 : Common Core Math: Grade 1

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

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

Example Question #8 : Subtract Multiples Of 10 From Multiples Of 10: Ccss.Math.Content.1.Nbt.C.6

Example Question #9 : 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

All Common Core: 1st Grade Math Resources

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