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Common Core: 1st Grade Math : Number & Operations in Base Ten

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 #4 : Numbers 10, 20, 30, 40, 50, 60, 70, 80, 90 Refer To One, Two, Three, Four, Five, Six, Seven, Eight, Or Nine Tens: Ccss.Math.Content.1.Nbt.B.2.C

How many tens are in the number 90?

Possible Answers:

Forty

Three

Nine

Four

Ninty

Correct answer:

Nine

Explanation:

There is a in the tens place which means there are nine tens in the number 90.

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Example Question #7 : Numbers 10, 20, 30, 40, 50, 60, 70, 80, 90 Refer To One, Two, Three, Four, Five, Six, Seven, Eight, Or Nine Tens: Ccss.Math.Content.1.Nbt.B.2.C

How many tens are in the number 29?

Possible Answers:

Nine

Twenty-nine

Two

Three

Twenty

Correct answer:

Two

Explanation:

There is a in the tens place which means there are two tens in the number 29.

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Example Question #2 : Numbers 10, 20, 30, 40, 50, 60, 70, 80, 90 Refer To One, Two, Three, Four, Five, Six, Seven, Eight, Or Nine Tens: Ccss.Math.Content.1.Nbt.B.2.C

How many tens are in the number 53?

Possible Answers:

Five

Thirty

Fifty

Three

Fifty-three

Correct answer:

Five

Explanation:

There is a in the tens place which means there are five tens in the number 53.

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Example Question #6 : Numbers 10, 20, 30, 40, 50, 60, 70, 80, 90 Refer To One, Two, Three, Four, Five, Six, Seven, Eight, Or Nine Tens: Ccss.Math.Content.1.Nbt.B.2.C

How many tens are in the number 13?

Possible Answers:

One

Three

Thirteen

Ten

Three

Correct answer:

One

Explanation:

There is a in the tens place which means there is one ten in the number 13.

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Example Question #131 : Understanding Place Value

How many tens are in the number 70?

Possible Answers:

Fifty

Seventy

Seven

Six

Five

Correct answer:

Seven

Explanation:

There is a in the tens place which means there are seven tens in the number 70.

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Example Question #11 : Numbers 10, 20, 30, 40, 50, 60, 70, 80, 90 Refer To One, Two, Three, Four, Five, Six, Seven, Eight, Or Nine Tens: Ccss.Math.Content.1.Nbt.B.2.C

How many tens are in the number 60?

Possible Answers:

Sixty

Six

Thirty

Seven

Three

Correct answer:

Six

Explanation:

There is a in the tens place which means there are six tens in the number 60.

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Example Question #33 : Whole And Part

Which statement is true?

Possible Answers:

63<62

63=62

63>62

Correct answer:

63>62

Explanation:

The sign means greater than. is greater than because of the number in the ones place. has a greater value than , which means has a greater value than .

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Example Question #1 : Compare Two Digit Numbers: Ccss.Math.Content.1.Nbt.B.3

Which statement is true?

Possible Answers:

47<46

47=46

47>46

Correct answer:

47>46

Explanation:

The sign means greater than. is greater than because of the number in the ones place. has a greater value than , which means has a greater value than 46.

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Example Question #2 : Compare Two Digit Numbers: Ccss.Math.Content.1.Nbt.B.3

Which statement is true?

Possible Answers:

22>21

22<21

22=21

Correct answer:

22>21

Explanation:

The sign means greater than. is greater than because of the number in the ones place. has a greater value than , which means has a greater value than 21.

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Example Question #136 : Understanding Place Value

Which statement is true?

Possible Answers:

36=35

36>35

36<35

Correct answer:

36>35

Explanation:

The sign means greater than. is greater than because of the number in the ones place. has a greater value than , which means has a greater value than 35.

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All Common Core: 1st Grade Math Resources

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Common Core: 1st Grade Math : Number & Operations in Base Ten

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

All Common Core: 1st Grade Math Resources

Example Questions

Example Question #4 : Numbers 10, 20, 30, 40, 50, 60, 70, 80, 90 Refer To One, Two, Three, Four, Five, Six, Seven, Eight, Or Nine Tens: Ccss.Math.Content.1.Nbt.B.2.C

Example Question #7 : Numbers 10, 20, 30, 40, 50, 60, 70, 80, 90 Refer To One, Two, Three, Four, Five, Six, Seven, Eight, Or Nine Tens: Ccss.Math.Content.1.Nbt.B.2.C

Example Question #2 : Numbers 10, 20, 30, 40, 50, 60, 70, 80, 90 Refer To One, Two, Three, Four, Five, Six, Seven, Eight, Or Nine Tens: Ccss.Math.Content.1.Nbt.B.2.C

Example Question #6 : Numbers 10, 20, 30, 40, 50, 60, 70, 80, 90 Refer To One, Two, Three, Four, Five, Six, Seven, Eight, Or Nine Tens: Ccss.Math.Content.1.Nbt.B.2.C

Example Question #131 : Understanding Place Value

Example Question #11 : Numbers 10, 20, 30, 40, 50, 60, 70, 80, 90 Refer To One, Two, Three, Four, Five, Six, Seven, Eight, Or Nine Tens: Ccss.Math.Content.1.Nbt.B.2.C

Example Question #33 : Whole And Part

Example Question #1 : Compare Two Digit Numbers: Ccss.Math.Content.1.Nbt.B.3

Example Question #2 : Compare Two Digit Numbers: Ccss.Math.Content.1.Nbt.B.3

Example Question #136 : Understanding Place Value

All Common Core: 1st Grade Math Resources

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