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Common Core: 2nd Grade Math : Common Core Math: Grade 2

Study concepts, example questions & explanations for Common Core: 2nd Grade Math

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All Common Core: 2nd Grade Math Resources

7 Diagnostic Tests 217 Practice Tests Question of the Day Flashcards Learn by Concept

Example Questions

Example Question #21 : Determine Even Or Odd Number Of Objects: Ccss.Math.Content.2.Oa.C.3

Is there an even or an odd number of dots below?

Screen shot 2015 12 01 at 10.42.14 am

Possible Answers:

Even

Odd

Both

Neither

Correct answer:

Odd

Explanation:

When trying to decide if we have an even or an odd number of items, we can put the items in pairs of two. If each item is in a pair, then we have an even number of items. If there is one item that isn't in a pair, then we have an odd number of items.

In this case, we have one dot so it's can't be in a pair, so we have an odd number of dots.

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Example Question #22 : Determine Even Or Odd Number Of Objects: Ccss.Math.Content.2.Oa.C.3

Is there an even or an odd number of dots below?

Screen shot 2015 12 01 at 10.44.05 am

Possible Answers:

Odd

Even

Both

Neither

Correct answer:

Even

Explanation:

In this case, our dots are in pairs of two, so we have an even number of dots.

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Example Question #101 : How To Add

What is the equation that shows the sum of the squares represented by this rectangular array?

Screen shot 2015 07 20 at 12.14.50 pm

Possible Answers:

4+3=12

4+4+4+4=12

3+3+3=9

3+3+3+3=12

6+2=12

Correct answer:

3+3+3+3=12

Explanation:

When we count the number of squares in this picture we get . We have rows with squares in each row. Our math equation for this set could be written as 3+3+3+3=12

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Example Question #1 : Use Addition To Determine Number Of Objects In A Rectangular Array: Ccss.Math.Content.2.Oa.C.4

What is the equation that shows the sum of the squares represented by this rectangular array?

Screen shot 2015 07 20 at 12.33.14 pm

Possible Answers:

2+2=4

3+1=4

2+2=6

2+1=4

1+3=4

Correct answer:

2+2=4

Explanation:

When we count the number of squares in this picture we get . We have rows with squares in each row. Our math equation for this set could be written as 2+2=4.

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Example Question #2 : Use Addition To Determine Number Of Objects In A Rectangular Array: Ccss.Math.Content.2.Oa.C.4

What is the equation that shows the sum of the squares represented by this rectangular array?

Screen shot 2015 07 20 at 12.43.39 pm

Possible Answers:

4+2=6

2+2+2=6

3+3=6

2+4=6

5+1=6

Correct answer:

2+2+2=6

Explanation:

When we count the number of squares in this picture we get . We have rows with squares in each row. Our math equation for this picture could be written as 2+2+2=6.

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Example Question #2 : Use Addition To Determine Number Of Objects In A Rectangular Array: Ccss.Math.Content.2.Oa.C.4

What is the equation that shows the sum of the squares represented by this rectangular array?

Screen shot 2015 07 20 at 12.53.02 pm

Possible Answers:

2+2+2+2=8

6+2=8

4+4=8

4+2+2=6

5+3=8

Correct answer:

4+4=8

Explanation:

When we count the number of squares in this picture we get . We have rows with squares in each row. Our math equation for this picture could be written as 4+4=8.

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Example Question #103 : How To Add

What is the equation that shows the sum of the squares represented by this rectangular array?

Screen shot 2015 07 20 at 1.04.51 pm

Possible Answers:

5+5=10

10+5=15

5+5+5=15.

10+10=20

5+3+2+5=15

Correct answer:

5+5+5=15.

Explanation:

When we count the number of squares in this picture we get . We have rows with squares in each row. Our math equation for this picture could be written as 5+5+5=15.

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Example Question #3 : Use Addition To Determine Number Of Objects In A Rectangular Array: Ccss.Math.Content.2.Oa.C.4

What is the equation that shows the sum of the squares represented by this rectangular array?

Screen shot 2015 07 20 at 1.14.34 pm

Possible Answers:

8+4=12

4+4+4+4=12

6+6=12

4+4+4=12

6+2+4=12

Correct answer:

4+4+4=12

Explanation:

When we count the number of squares in each box we get . We have rows with squares in each row. Our math equation for this picture could be written as 4+4+4=12.

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Example Question #5 : Use Addition To Determine Number Of Objects In A Rectangular Array: Ccss.Math.Content.2.Oa.C.4

What is the equation that shows the sum of the squares represented by this rectangular array?

Screen shot 2015 07 20 at 2.11.33 pm

Possible Answers:

12+12=24

4+4+4+4+4+4=24

4+4+4+4=20

10+10=20

4+4+4+4+4=20

Correct answer:

4+4+4+4+4=20

Explanation:

When we count the number of squares in this picture we get . We have rows with squares in each row. Our math equation for this picture could be written as 4+4+4+4+4=20.

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Example Question #4 : Use Addition To Determine Number Of Objects In A Rectangular Array: Ccss.Math.Content.2.Oa.C.4

What is the equation that shows the sum of the squares represented by this rectangular array?

Screen shot 2015 07 20 at 3.07.03 pm

Possible Answers:

2+2+2=6

3+3+3=6

5+1=6

4+2=6

3+3=6

Correct answer:

3+3=6

Explanation:

When we count the number of squares within the box we get . We have rows with squares in each row. Our math equation for this picture could be written as 3+3=6.

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All Common Core: 2nd Grade Math Resources

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Common Core: 2nd Grade Math : Common Core Math: Grade 2

Study concepts, example questions & explanations for Common Core: 2nd Grade Math

All Common Core: 2nd Grade Math Resources

Example Questions

Example Question #21 : Determine Even Or Odd Number Of Objects: Ccss.Math.Content.2.Oa.C.3

Example Question #22 : Determine Even Or Odd Number Of Objects: Ccss.Math.Content.2.Oa.C.3

Example Question #101 : How To Add

Example Question #1 : Use Addition To Determine Number Of Objects In A Rectangular Array: Ccss.Math.Content.2.Oa.C.4

Example Question #2 : Use Addition To Determine Number Of Objects In A Rectangular Array: Ccss.Math.Content.2.Oa.C.4

Example Question #2 : Use Addition To Determine Number Of Objects In A Rectangular Array: Ccss.Math.Content.2.Oa.C.4

Example Question #103 : How To Add

Example Question #3 : Use Addition To Determine Number Of Objects In A Rectangular Array: Ccss.Math.Content.2.Oa.C.4

Example Question #5 : Use Addition To Determine Number Of Objects In A Rectangular Array: Ccss.Math.Content.2.Oa.C.4

Example Question #4 : Use Addition To Determine Number Of Objects In A Rectangular Array: Ccss.Math.Content.2.Oa.C.4

All Common Core: 2nd Grade Math Resources

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