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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 #2 : 11 To 19 Are Composed Of A Ten And One, Two, Three, Four, Five, Six, Seven, Eight, Or Nine Ones: Ccss.Math.Content.1.Nbt.B.2.B

What number is ten and zero?

Possible Answers:

100

1000

Correct answer:

Explanation:

Ten and zero means the same thing as 10+0 . When we add 10+0=10.

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Example Question #3 : 11 To 19 Are Composed Of A Ten And One, Two, Three, Four, Five, Six, Seven, Eight, Or Nine Ones: Ccss.Math.Content.1.Nbt.B.2.B

What number is ten and nine?

Possible Answers:

1009

109

Correct answer:

Explanation:

Ten and nine means the same thing as 10+9 . When we add 10+9=19.

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Example Question #111 : Understanding Place Value

What number is ten and one?

Possible Answers:

1001

101

Correct answer:

Explanation:

Ten and one means the same thing as 10+1 . When we add 10+1=11 .

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Example Question #112 : Understanding Place Value

What number is ten and five?

Possible Answers:

105

Correct answer:

Explanation:

Ten and five means the same thing as 10+5 . When we add 10+5=15 .

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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 10?

Possible Answers:

Five

Ten

Six

Two

One

Correct answer:

One

Explanation:

There is a in the tens place which means there is one ten in the number 10.

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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 30?

Possible Answers:

Thirteen

Three

Thirty

Five

Four

Correct answer:

Three

Explanation:

There is a in the tens place which means there are three tens in the number 30.

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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 20?

Possible Answers:

Three

Twelve

Two

One

Twenty

Correct answer:

Two

Explanation:

There is a in the tens place which means there are two tens in the number 20.

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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 40?

Possible Answers:

Fourteen

Four

Five

Six

Forty

Correct answer:

Four

Explanation:

There is a in the tens place which means there are four tens in the number 40.

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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 50?

Possible Answers:

Seven

Five

Six

Three

Fifty

Correct answer:

Five

Explanation:

There is a in the tens place which means there are five tens in the number 50.

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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 80?

Possible Answers:

Eight

Four

Six

Eighty

Sixty

Correct answer:

Eight

Explanation:

There is a in the tens place which means there are eight tens in the number 80.

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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 #2 : 11 To 19 Are Composed Of A Ten And One, Two, Three, Four, Five, Six, Seven, Eight, Or Nine Ones: Ccss.Math.Content.1.Nbt.B.2.B

Example Question #3 : 11 To 19 Are Composed Of A Ten And One, Two, Three, Four, Five, Six, Seven, Eight, Or Nine Ones: Ccss.Math.Content.1.Nbt.B.2.B

Example Question #111 : Understanding Place Value

Example Question #112 : Understanding Place Value

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

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 #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

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

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 #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

All Common Core: 1st Grade Math Resources

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