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Common Core: 1st Grade Math : Operations & Algebraic Thinking

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 #11 : Knowing How And When To Subtract

$\frac{\begin{array}[b]{r}12\\ -\ 5\end{array}}{ \ \ \ \space ?}$

Possible Answers:

Correct answer:

Explanation:

To subtract we can count backwards. Start at and count back .

12, 11, 10, 9, 8, 7

$\frac{\begin{array}[b]{r}12\\ -\ 5\end{array}}{ \ \ \ \space 7}$

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Example Question #12 : Knowing How And When To Subtract

$\frac{\begin{array}[b]{r}11\\ -\ 6\end{array}}{ \ \ \ \space ?}$

Possible Answers:

Correct answer:

Explanation:

To subtract we can count backwards. Start at and count back .

11, 10, 9, 8, 7, 6, 5

$\frac{\begin{array}[b]{r}11\\ -\ 6\end{array}}{ \ \ \ \space 5}$

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Example Question #13 : Knowing How And When To Subtract

$\frac{\begin{array}[b]{r}10\\ -\ 3\end{array}}{ \ \ \ \space ?}$

Possible Answers:

Correct answer:

Explanation:

To subtract we can count backwards. Start at and count back .

10, 9, 8, 7

$\frac{\begin{array}[b]{r}10\\ -\ 3\end{array}}{ \ \ \ \space 7}$

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Example Question #14 : Knowing How And When To Subtract

$\frac{\begin{array}[b]{r}9\\ -\ 7\end{array}}{ \ \ \ \space ?}$

Possible Answers:

Correct answer:

Explanation:

To subtract we can count backwards. Start at and count back .

9, 8, 7, 6, 5, 4, 3, 2

$\frac{\begin{array}[b]{r}9\\ -\ 7\end{array}}{ \ \ \ \space 2}$

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Example Question #15 : Knowing How And When To Subtract

$\frac{\begin{array}[b]{r}9\\ -\ 9\end{array}}{ \ \ \ \space ?}$

Possible Answers:

Correct answer:

Explanation:

To subtract we can count backwards. Start at and count back .

9, 8,7 ,6 ,5 ,4, 3, 2, 1, 0

$\frac{\begin{array}[b]{r}9\\ -\ 9\end{array}}{ \ \ \ \space 0}$

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Example Question #1471 : Common Core Math: Grade 1

$\frac{\begin{array}[b]{r}8\\ -\ 5\end{array}}{ \ \ \ \space ?}$

Possible Answers:

Correct answer:

Explanation:

To subtract we can count backwards. Start at and count back .

8, 7, 6, 5, 4, 3

$\frac{\begin{array}[b]{r}8\\ -\ 5\end{array}}{ \ \ \ \space 3}$

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Example Question #17 : Knowing How And When To Subtract

$\frac{\begin{array}[b]{r}7\\ -\ 5\end{array}}{ \ \ \ \space ?}$

Possible Answers:

Correct answer:

Explanation:

To subtract we can count backwards. Start at and count back .

7, 6, 5, 4, 3, 2

$\frac{\begin{array}[b]{r}7\\ -\ 5\end{array}}{ \ \ \ \space 2}$

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Example Question #1481 : Common Core Math: Grade 1

$\frac{\begin{array}[b]{r}6\\ -\ 3\end{array}}{ \ \ \ \space ?}$

Possible Answers:

Correct answer:

Explanation:

To subtract we can count backwards. Start at and count back .

6, 5,4, 3

$\frac{\begin{array}[b]{r}6\\ -\ 3\end{array}}{ \ \ \ \space 3}$

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Example Question #22 : Knowing How And When To Subtract

$\frac{\begin{array}[b]{r}5\\ -\ 4\end{array}}{ \ \ \ \space ?}$

Possible Answers:

Correct answer:

Explanation:

To subtract we can count backwards. Start at and count back .

5, 4, 3, 2, 1

$\frac{\begin{array}[b]{r}5\\ -\ 4\end{array}}{ \ \ \ \space 1}$

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Example Question #23 : Knowing How And When To Subtract

$\frac{\begin{array}[b]{r}4\\ -\ 2\end{array}}{ \ \ \ \space ?}$

Possible Answers:

Correct answer:

Explanation:

To subtract we can count backwards. Start at and count back .

4, 3, 2

$\frac{\begin{array}[b]{r}4\\ -\ 2\end{array}}{ \ \ \ \space 2}$

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Common Core: 1st Grade Math : Operations & Algebraic Thinking

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

All Common Core: 1st Grade Math Resources

Example Questions

Example Question #11 : Knowing How And When To Subtract

Example Question #12 : Knowing How And When To Subtract

Example Question #13 : Knowing How And When To Subtract

Example Question #14 : Knowing How And When To Subtract

Example Question #15 : Knowing How And When To Subtract

Example Question #1471 : Common Core Math: Grade 1

Example Question #17 : Knowing How And When To Subtract

Example Question #1481 : Common Core Math: Grade 1

Example Question #22 : Knowing How And When To Subtract

Example Question #23 : Knowing How And When To Subtract

All Common Core: 1st Grade Math Resources

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