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Common Core: 1st Grade Math : Common Core Math: Grade 1

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 #20 : 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 #481 : Adding And Subtracting Within 20

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

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 #911 : Operations & Algebraic Thinking

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

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 #912 : Operations & Algebraic Thinking

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

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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Example Question #563 : How To Subtract

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

Possible Answers:

Correct answer:

Explanation:

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

3,2,1,0

$\frac{\begin{array}[b]{r}3\\ -\ 3\end{array}}{ \ \ \ \space 0}$

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Example Question #921 : Operations & Algebraic Thinking

$\frac{\begin{array}[b]{r}20\\ -\ 5\end{array}}{ \ \ \ \space ?}$

Possible Answers:

Correct answer:

Explanation:

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

20,19,18,17,16,15

$\frac{\begin{array}[b]{r}20\\ -\ 5\end{array}}{ \ \ \space 15}$

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Example Question #281 : How To Add

Which is an example of associative property?

Possible Answers:

6+4+3=13 and 8+6=13

5+2=3 and 2+5=3

3+2=5 and 2+3=5

and

Correct answer:

and

Explanation:

The associative property says that you can group a set of numbers in a series, and still get the same answer. If we group 6+4 to get , and then add 10+3 we get a sum of .

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Example Question #282 : How To Add

Which is an example of associative property?

Possible Answers:

7+3+3=13 and 7+9=13

and

7+3=10 and 3+7=10

10+3=7 and 3+10=7

Correct answer:

and

Explanation:

The associative property says that you can group a set of numbers in a series, and still get the same answer. If we group 7+3 to get , and then add 10+3 we get a sum of .

Report an Error

Example Question #922 : Operations & Algebraic Thinking

Which is an example of associative property?

Possible Answers:

and

6+8+4=18 and 14+6=18

14+6=8 and 6+14=8

6+8=14 and 8+6=14

Correct answer:

and

Explanation:

The associative property says that you can group a set of numbers in a series, and still get the same answer. If we group 6+4 to get , and then add 10+8 we get a sum of .

Report an Error

Example Question #923 : Operations & Algebraic Thinking

Which is an example of associative property?

Possible Answers:

4+9+1=14 and 6+9=14

13+4=9 and 4+13=9

and

4+9=1 and 9+4=13

Correct answer:

and

Explanation:

The associative property says that you can group a set of numbers in a series, and still get the same answer. If we group 9+1 to get , and then add 10+4 we get a sum of .

Report an Error

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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

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Common Core: 1st Grade Math : Common Core Math: Grade 1

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

All Common Core: 1st Grade Math Resources

Example Questions

Example Question #20 : Knowing How And When To Subtract

Example Question #481 : Adding And Subtracting Within 20

Example Question #911 : Operations & Algebraic Thinking

Example Question #912 : Operations & Algebraic Thinking

Example Question #563 : How To Subtract

Example Question #921 : Operations & Algebraic Thinking

Example Question #281 : How To Add

Example Question #282 : How To Add

Example Question #922 : Operations & Algebraic Thinking

Example Question #923 : Operations & Algebraic Thinking

All Common Core: 1st Grade Math Resources

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