Common Core: 1st Grade Math : 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

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

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Example Questions

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Example Question #1 : 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 

Possible Answers:

One

Five

Two

Six

Ten

Correct answer:

One

Explanation:

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

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 

 

Possible Answers:

Four

Three

Thirteen

Five

Thirty

Correct answer:

Three

Explanation:

There is a  in the tens place which means there are three tens in the number 

Example Question #3 : 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 

 

Possible Answers:

Twenty

Three

One

Two

Twelve

Correct answer:

Two

Explanation:

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

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 

 

Possible Answers:

Four

Fourteen 

Five

Six

Forty

Correct answer:

Four

Explanation:

There is a  in the tens place which means there are four tens in the number 

Example Question #5 : 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 

 

Possible Answers:

Five

Seven

Fifty

Six

Three

Correct answer:

Five

Explanation:

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

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 

 

Possible Answers:

Eighty

Six

Sixty

Four

Eight

Correct answer:

Eight

Explanation:

There is a  in the tens place which means there are eight tens in the number 

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 

 

Possible Answers:

Forty

Ninty

Four

Three

Nine

Correct answer:

Nine

Explanation:

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

Example Question #8 : 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 

 

Possible Answers:

Twenty-nine

Three

Twenty

Nine

Two

Correct answer:

Two

Explanation:

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

Example Question #9 : 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 

 

Possible Answers:

Thirty

Fifty

Three

Five

Fifty-three

Correct answer:

Five

Explanation:

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

Example Question #10 : 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 

 

Possible Answers:

One

Three

Thirteen

Three

Ten

Correct answer:

One

Explanation:

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

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