Common Core: 2nd Grade Math : Number & Operations in Base Ten

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

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Example Questions

Example Question #1011 : Common Core Math: Grade 2

Fill in the blank with the correct symbol.

 __________ 

 

Possible Answers:

Correct answer:

Explanation:

The  sign means less than.  is less than  because of the number in the ones place.  is less than , which makes  less than 

Example Question #4173 : Numbers And Operations

Fill in the blank with the correct symbol.

 __________ 

 

Possible Answers:

Correct answer:

Explanation:

The  sign means less than.  is less than  because of the number in the hundreds place.  is less than , which makes  less than 

Example Question #4174 : Numbers And Operations

Fill in the blank with the correct symbol.

 __________ 

 

Possible Answers:

Correct answer:

Explanation:

The  sign means less than.  is less than  because of the number in the ones place.  is less than , which makes  less than 

Example Question #351 : How To Find The Whole From The Part

Fill in the blank with the correct symbol.

 __________ 

 

Possible Answers:

Correct answer:

Explanation:

The  sign means less than.  is less than  because of the number in the tens place.  is less than , which makes  less than 

Example Question #41 : Compare Two Three Digit Numbers: Ccss.Math.Content.2.Nbt.A.4

Fill in the blank with the correct symbol.

 ___________ 

 

Possible Answers:

Correct answer:

Explanation:

The  sign means equal to. Because  and  are the same number they are equal to each other. They can’t be less than or greater than each other because their value is the same.

Example Question #42 : Compare Two Three Digit Numbers: Ccss.Math.Content.2.Nbt.A.4

Fill in the blank with the correct symbol.

 __________ 

 

Possible Answers:

Correct answer:

Explanation:

The  sign means equal to. Because  and  are the same number they are equal to each other. They can’t be less than or greater than each other because their value is the same.

Example Question #1 : Add And Subtract Within 100: Ccss.Math.Content.2.Nbt.B.5

Solve:

Possible Answers:

Correct answer:

Explanation:

When we add with multi-digit numbers, we start with the numbers in the ones place, and then move to the left. 

4

Let's add the digits in the ones place:

Because the sum is greater than , we have to carry the  to the tens place. So far, your work should look like the following: 

1

Next, we add the numbers in the tens position, including the  that was carried over:

2

Let's add the digits in the tens place:

Your final answer should be 

3

Example Question #1 : Add And Subtract Within 100: Ccss.Math.Content.2.Nbt.B.5

Solve:

Possible Answers:

Correct answer:

Explanation:

When we add with multi-digit numbers, we start with the numbers in the ones place, and then move to the left. 

1

Let's add the digits in the ones place:

Next, we add the numbers in the tens position.

2

Let's add the digits in the tens place:

Your final answer should be 

3

Example Question #2 : Add And Subtract Within 100: Ccss.Math.Content.2.Nbt.B.5

Solve:

Possible Answers:

Correct answer:

Explanation:

When we add with multi-digit numbers, we start with the numbers in the ones place, and then move to the left. 

1

Let's add the digits in the ones place:

Next, we add the numbers in the tens position.

2

Let's add the digits in the tens place:

Your final answer should be 


3

Example Question #3 : Add And Subtract Within 100: Ccss.Math.Content.2.Nbt.B.5

Solve:

Possible Answers:

Correct answer:

Explanation:

When we add with multi-digit numbers, we start with the numbers in the ones place, and then move to the left. 

1

Let's add the digits in the ones place:

Because the sum is greater than , we have to carry the  to the tens place. So far, your work should look like the following: 

2

Next, we add the numbers in the tens position, including the  that was carried over:

3

Let's add the digits in the tens place:

Your final answer should be 


4

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