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Common Core: 2nd Grade Math : Operations & Algebraic Thinking

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 #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 1.04.51 pm

Possible Answers:

5+5=10

10+10=20

10+5=15

5+3+2+5=15

5+5+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 #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 1.14.34 pm

Possible Answers:

6+6=12

4+4+4+4=12

8+4=12

6+2+4=12

4+4+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:

4+4+4+4+4=20

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

4+4+4+4=20

10+10=20

12+12=24

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 #6 : 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:

5+1=6

3+3+3=6

3+3=6

2+2+2=6

4+2=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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Example Question #6 : 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 3.12.58 pm

Possible Answers:

8+8=16

4+4+4+4+4=16

4+4+4+4=16

10+6=16

6+10=16

Correct answer:

4+4+4+4=16

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 4+4+4+4=16.

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Example Question #151 : 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 1.21.36 pm

Possible Answers:

5+5+5+5+5=25

15+10=25

10+10=20

10+10+5=25

5+5+5+5=20

Correct answer:

5+5+5+5+5=25

Explanation:

When you count the number of squares in this picture you get . We have rows with squares in each row. Our math equation for this picture could be written as 5+5+5+5+5=25.

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Example Question #2121 : Common Core Math: Grade 2

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

Screen shot 2015 07 20 at 1.09.58 pm

Possible Answers:

4+4=8

4+5=9

3+3=6

3+3+3=9

5+4=9

Correct answer:

3+3+3=9

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 3+3+3=9.

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Example Question #12 : 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 2.59.43 pm

Possible Answers:

5+5+5+5+5=10

2+2+2+2+2+2=12

2+2+2+2+2=10

5+5+5=15

2+2+2+2=8

Correct answer:

2+2+2+2+2=10

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+2+2=10.

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Example Question #1 : Use Addition And Subtraction Within 100 To Solve One And Two Step Word Problems: Ccss.Math.Content.2.Oa.A.1

Molly has pencils and Natalie has . How many total pencils do they have if they put theirs together?

Possible Answers:

Correct answer:

Explanation:

This is an addition problem because Molly and Natalie are putting their pencils together. We can either add 37+24=61 or 24+37=61 .

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Example Question #81 : How To Add

Emily has blueberries, strawberries, and raspberries on her plate. How many total pieces of fruit does she have?

Possible Answers:

Correct answer:

Explanation:

This is an addition problem because we want to know how many total pieces of fruit Emily has on her plate all together. We can add the numbers is any order, 18+14+30=62.

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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

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Common Core: 2nd Grade Math : Operations & Algebraic Thinking

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

All Common Core: 2nd Grade Math Resources

Example Questions

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

Example Question #6 : Use Addition To Determine Number Of Objects In A Rectangular Array: Ccss.Math.Content.2.Oa.C.4

Example Question #6 : Use Addition To Determine Number Of Objects In A Rectangular Array: Ccss.Math.Content.2.Oa.C.4

Example Question #151 : How To Add

Example Question #2121 : Common Core Math: Grade 2

Example Question #12 : Use Addition To Determine Number Of Objects In A Rectangular Array: Ccss.Math.Content.2.Oa.C.4

Example Question #1 : Use Addition And Subtraction Within 100 To Solve One And Two Step Word Problems: Ccss.Math.Content.2.Oa.A.1

Example Question #81 : How To Add

All Common Core: 2nd Grade Math Resources

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