Common Core: 2nd Grade Math : Common Core Math: Grade 2

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

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Example Questions

Example Question #61 : 100 Can Be Thought Of As A Bundle Of Ten Tens: Ccss.Math.Content.2.Nbt.A.1a

Select the number with \(\displaystyle 4\) ones, \(\displaystyle 2\) tens, \(\displaystyle 3\) hundreds. 

Possible Answers:

\(\displaystyle 243\)

\(\displaystyle 324\)

\(\displaystyle 432\)

\(\displaystyle 423\)

Correct answer:

\(\displaystyle 324\)

Explanation:

From left to right, when we have a \(\displaystyle 3\) digit number, the hundreds is written first, followed by the tens, and then the ones. 

Screen shot 2016 02 05 at 10.26.42 am

For this problem, we have \(\displaystyle 3\) hundreds, \(\displaystyle 2\) tens, and \(\displaystyle 4\) ones. This can be written as \(\displaystyle 324\)

Example Question #442 : Common Core Math: Grade 2

Select the number with \(\displaystyle 4\) ones, \(\displaystyle 2\) tens, \(\displaystyle 5\) hundreds. 

Possible Answers:

\(\displaystyle 524\)

\(\displaystyle 254\)

\(\displaystyle 425\)

\(\displaystyle 542\)

Correct answer:

\(\displaystyle 524\)

Explanation:

From left to right, when we have a \(\displaystyle 3\) digit number, the hundreds is written first, followed by the tens, and then the ones. 

Screen shot 2016 02 05 at 10.26.42 am

For this problem, we have \(\displaystyle 5\) hundreds, \(\displaystyle 2\) tens, and \(\displaystyle 4\) ones. This can be written as \(\displaystyle 524\)

Example Question #441 : Common Core Math: Grade 2

Select the number with \(\displaystyle 4\) ones, \(\displaystyle 2\) tens, \(\displaystyle 6\) hundreds. 

Possible Answers:

\(\displaystyle 642\)

\(\displaystyle 624\)

\(\displaystyle 426\)

\(\displaystyle 262\)

Correct answer:

\(\displaystyle 624\)

Explanation:

From left to right, when we have a \(\displaystyle 3\) digit number, the hundreds is written first, followed by the tens, and then the ones. 

Screen shot 2016 02 05 at 10.26.42 am

For this problem, we have \(\displaystyle 6\) hundreds, \(\displaystyle 2\) tens, and \(\displaystyle 4\) ones. This can be written as \(\displaystyle 624\)

Example Question #442 : Common Core Math: Grade 2

Select the number with \(\displaystyle 4\) ones, \(\displaystyle 2\) tens, \(\displaystyle 7\) hundreds. 

Possible Answers:

\(\displaystyle 427\)

\(\displaystyle 724\)

\(\displaystyle 274\)

\(\displaystyle 742\)

Correct answer:

\(\displaystyle 724\)

Explanation:

From left to right, when we have a \(\displaystyle 3\) digit number, the hundreds is written first, followed by the tens, and then the ones. 

Screen shot 2016 02 05 at 10.26.42 am

For this problem, we have \(\displaystyle 7\) hundreds, \(\displaystyle 2\) tens, and \(\displaystyle 4\) ones. This can be written as \(\displaystyle 724\)

Example Question #443 : Common Core Math: Grade 2

Select the number with \(\displaystyle 7\) hundreds, \(\displaystyle 9\) ones, \(\displaystyle 2\) tens. 

Possible Answers:

\(\displaystyle 729\)

\(\displaystyle 972\)

\(\displaystyle 297\)

\(\displaystyle 279\)

Correct answer:

\(\displaystyle 729\)

Explanation:

From left to right, when we have a \(\displaystyle 3\) digit number, the hundreds is written first, followed by the tens, and then the ones. 

Screen shot 2016 02 05 at 10.26.42 am

For this problem, we have \(\displaystyle 7\) hundreds, \(\displaystyle 2\) tens, and \(\displaystyle 9\) ones. This can be written as \(\displaystyle 729\)

Example Question #444 : Common Core Math: Grade 2

Select the number with \(\displaystyle 8\) hundreds, \(\displaystyle 9\) ones, \(\displaystyle 2\) tens. 

Possible Answers:

\(\displaystyle 829\)

\(\displaystyle 298\)

\(\displaystyle 289\)

\(\displaystyle 892\)

Correct answer:

\(\displaystyle 829\)

Explanation:

From left to right, when we have a \(\displaystyle 3\) digit number, the hundreds is written first, followed by the tens, and then the ones. 

Screen shot 2016 02 05 at 10.26.42 am

For this problem, we have \(\displaystyle 8\) hundreds, \(\displaystyle 2\) tens, and \(\displaystyle 9\) ones. This can be written as \(\displaystyle 829\)

Example Question #75 : 100 Can Be Thought Of As A Bundle Of Ten Tens: Ccss.Math.Content.2.Nbt.A.1a

Select the number with \(\displaystyle 1\) hundred, \(\displaystyle 9\) ones, \(\displaystyle 2\) tens. 

Possible Answers:

\(\displaystyle 291\)

\(\displaystyle 912\)

\(\displaystyle 129\)

\(\displaystyle 921\)

Correct answer:

\(\displaystyle 129\)

Explanation:

From left to right, when we have a \(\displaystyle 3\) digit number, the hundreds is written first, followed by the tens, and then the ones. 

Screen shot 2016 02 05 at 10.26.42 am

For this problem, we have \(\displaystyle 1\) hundred, \(\displaystyle 2\) tens, and \(\displaystyle 9\) ones. This can be written as \(\displaystyle 129\)

Example Question #445 : Common Core Math: Grade 2

Select the number with \(\displaystyle 3\) hundreds, \(\displaystyle 9\) ones, \(\displaystyle 2\) tens. 

Possible Answers:

\(\displaystyle 329\)

\(\displaystyle 923\)

\(\displaystyle 239\)

\(\displaystyle 932\)

Correct answer:

\(\displaystyle 329\)

Explanation:

From left to right, when we have a \(\displaystyle 3\) digit number, the hundreds is written first, followed by the tens, and then the ones. 

Screen shot 2016 02 05 at 10.26.42 am

For this problem, we have \(\displaystyle 3\) hundreds, \(\displaystyle 2\) tens, and \(\displaystyle 9\) ones. This can be written as \(\displaystyle 329\)

Example Question #72 : 100 Can Be Thought Of As A Bundle Of Ten Tens: Ccss.Math.Content.2.Nbt.A.1a

Select the number with \(\displaystyle 4\) hundreds, \(\displaystyle 9\) ones, \(\displaystyle 2\) tens. 

Possible Answers:

\(\displaystyle 429\)

\(\displaystyle 492\)

\(\displaystyle 249\)

\(\displaystyle 294\)

Correct answer:

\(\displaystyle 429\)

Explanation:

From left to right, when we have a \(\displaystyle 3\) digit number, the hundreds is written first, followed by the tens, and then the ones. 

Screen shot 2016 02 05 at 10.26.42 am

For this problem, we have \(\displaystyle 4\) hundreds, \(\displaystyle 2\) tens, and \(\displaystyle 9\) ones. This can be written as \(\displaystyle 429\)

Example Question #446 : Common Core Math: Grade 2

Select the number with \(\displaystyle 5\) hundreds, \(\displaystyle 9\) ones, \(\displaystyle 2\) tens. 

Possible Answers:

\(\displaystyle 592\)

\(\displaystyle 952\)

\(\displaystyle 529\)

\(\displaystyle 295\)

Correct answer:

\(\displaystyle 529\)

Explanation:

From left to right, when we have a \(\displaystyle 3\) digit number, the hundreds is written first, followed by the tens, and then the ones. 

Screen shot 2016 02 05 at 10.26.42 am

For this problem, we have \(\displaystyle 5\) hundreds, \(\displaystyle 2\) tens, and \(\displaystyle 9\) ones. This can be written as \(\displaystyle 529\)

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