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Common Core: 1st Grade Math : Understand the Equal Sign, Determine if Equations are True or False: CCSS.MATH.CONTENT.1.OA.D.7

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All Common Core: 1st Grade Math Resources

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Example Questions

Example Question #551 : Common Core Math: Grade 1

Which of the equations is TRUE?

Possible Answers:

12=8-4

12=9-4

12=8+4

12=9+4

Correct answer:

12=8+4

Explanation:

When you add and together you get . 9+4 does not equal because 9+4=13 . 8-4 does not equal because 8-4=4 . 9-4 does not equal because 9-4=5 .

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Example Question #51 : Understand The Equal Sign, Determine If Equations Are True Or False: Ccss.Math.Content.1.Oa.D.7

Which of the equations is TRUE?

Possible Answers:

15=11-5

15=11+5

15=10-5

15=10+5

Correct answer:

15=10+5

Explanation:

When you add and together you get . 11+5 does not equal because 11+5=16 . 10-5 does not equal because 10-5=5. 11-5 does not equal because 11-5=6 .

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Example Question #52 : Understand The Equal Sign, Determine If Equations Are True Or False: Ccss.Math.Content.1.Oa.D.7

Which of the equations is TRUE?

Possible Answers:

4=2+1

4=2-2

4=2+2

4=2-1

Correct answer:

4=2+2

Explanation:

When you add and together you get . 2+1 does not equal because 2+1=3 . 2-2 does not equal because 2-2=0 . 2-1 does not equal because 2-1=1 .

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Example Question #53 : Understand The Equal Sign, Determine If Equations Are True Or False: Ccss.Math.Content.1.Oa.D.7

Which of the equations is TRUE?

Possible Answers:

14=7-7

14=7+8

14=7+7

14=8-7

Correct answer:

14=7+7

Explanation:

When you add and together you get . 7+8 does not equal because 7+8=15 . 7-7 does not equal because 7-7=0 . 8-7 does not equal because 8-7=1 .

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Example Question #54 : Understand The Equal Sign, Determine If Equations Are True Or False: Ccss.Math.Content.1.Oa.D.7

Which of the equations is TRUE?

Possible Answers:

13=9+4

13=9-4

13=9+5

13=9-5

Correct answer:

13=9+4

Explanation:

When you add and together you get . 9+5 does not equal because 9+5=14 . 9-4 does not equal because 9-4=5 . 9-5 does not equal because 9-5=4 .

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Example Question #55 : Understand The Equal Sign, Determine If Equations Are True Or False: Ccss.Math.Content.1.Oa.D.7

Which of the equations is TRUE?

Possible Answers:

18=9-9

18=9+9

18=9-8

18=9+8

Correct answer:

18=9+9

Explanation:

When you add and together you get . 9+8 does not equal because 9+8=17 . 9-9 does not equal because 9-9=0 . 9-8 does not equal because 9-8=1 .

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Example Question #56 : Understand The Equal Sign, Determine If Equations Are True Or False: Ccss.Math.Content.1.Oa.D.7

Which of the equations is TRUE?

Possible Answers:

17=9-8

17=9+9

17=9-9

17=9+8

Correct answer:

17=9+8

Explanation:

When you add and together you get . 9+9 does not equal because 9+9=18 . 9-8 does not equal because 9-8=1 . 9-9 does not equal because 9-9=0 .

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Example Question #57 : Understand The Equal Sign, Determine If Equations Are True Or False: Ccss.Math.Content.1.Oa.D.7

Which of the equations is TRUE?

Possible Answers:

16=5+11

16=11-5

16=10+5

16=10-5

Correct answer:

16=5+11

Explanation:

When you add and together you get . 10+5 does not equal because 10+5=15 . 11-5 does not equal because 11-5=6 . 10-5 does not equal because 10-5=5 .

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Example Question #58 : Understand The Equal Sign, Determine If Equations Are True Or False: Ccss.Math.Content.1.Oa.D.7

Which of the equations is TRUE?

Possible Answers:

2+2=8-1

2+2=8-2

2+2=8-3

2+2=8-4

Correct answer:

2+2=8-4

Explanation:

Both 2+2 and 8-4 equal . So these two equations equal each other. 8-3=5 , 8-2=6 , 8-1=7 . Because none of these equations equal , they can’t be equal to 2+2 .

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Example Question #59 : Understand The Equal Sign, Determine If Equations Are True Or False: Ccss.Math.Content.1.Oa.D.7

Which of the equations is TRUE?

Possible Answers:

2+3=10-5

2+3-10-3

2+3=10-4

2+3=10-2

Correct answer:

2+3=10-5

Explanation:

Both 2+3 and 10-5 equal . So these two equations equal each other. 10-4=6 , 10-3=7 , and 10-2=8 . Because none of these equations equal , they can’t be equal to 2+3 .

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All Common Core: 1st Grade Math Resources

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Common Core: 1st Grade Math : Understand the Equal Sign, Determine if Equations are True or False: CCSS.MATH.CONTENT.1.OA.D.7

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

All Common Core: 1st Grade Math Resources

Example Questions

Example Question #551 : Common Core Math: Grade 1

Example Question #51 : Understand The Equal Sign, Determine If Equations Are True Or False: Ccss.Math.Content.1.Oa.D.7

Example Question #52 : Understand The Equal Sign, Determine If Equations Are True Or False: Ccss.Math.Content.1.Oa.D.7

Example Question #53 : Understand The Equal Sign, Determine If Equations Are True Or False: Ccss.Math.Content.1.Oa.D.7

Example Question #54 : Understand The Equal Sign, Determine If Equations Are True Or False: Ccss.Math.Content.1.Oa.D.7

Example Question #55 : Understand The Equal Sign, Determine If Equations Are True Or False: Ccss.Math.Content.1.Oa.D.7

Example Question #56 : Understand The Equal Sign, Determine If Equations Are True Or False: Ccss.Math.Content.1.Oa.D.7

Example Question #57 : Understand The Equal Sign, Determine If Equations Are True Or False: Ccss.Math.Content.1.Oa.D.7

Example Question #58 : Understand The Equal Sign, Determine If Equations Are True Or False: Ccss.Math.Content.1.Oa.D.7

Example Question #59 : Understand The Equal Sign, Determine If Equations Are True Or False: Ccss.Math.Content.1.Oa.D.7

All Common Core: 1st Grade Math Resources

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