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 #9 : 100 Can Be Thought Of As A Bundle Of Ten Tens: Ccss.Math.Content.2.Nbt.A.1a

Which of the following describes the number \(\displaystyle 100?\)

Possible Answers:

\(\displaystyle 5\) bundles of ten tens

\(\displaystyle 10\) bundles of ten tens

\(\displaystyle 2\) bundles of ten tens

\(\displaystyle 1\) bundle of ten tens

Correct answer:

\(\displaystyle 1\) bundle of ten tens

Explanation:

\(\displaystyle 100\) can be thought of as \(\displaystyle 1\) bundle of ten tens, called a "hundred." The image provided can show you that when we put ten rods of \(\displaystyle 10\) together, called a bundle, we get \(\displaystyle 100\)


10s to 100

Example Question #10 : 100 Can Be Thought Of As A Bundle Of Ten Tens: Ccss.Math.Content.2.Nbt.A.1a

Which of the following describes the number \(\displaystyle 300?\)

 

Possible Answers:

\(\displaystyle 4\) bundles of ten tens

\(\displaystyle 2\) bundles of ten tens

\(\displaystyle 1\) bundle of ten tens

\(\displaystyle 3\) bundles of ten tens

Correct answer:

\(\displaystyle 3\) bundles of ten tens

Explanation:

\(\displaystyle 100\) can be thought of as \(\displaystyle 1\) bundle of ten tens, called a "hundred." The image provided can show you that when we put ten rods of \(\displaystyle 10\) together, called a bundle, we get \(\displaystyle 100\)

If we have \(\displaystyle 300\), we have \(\displaystyle 3\) bundles of ten tens. 

10s to 100

10s to 100

10s to 100

Example Question #381 : Common Core Math: Grade 2

Which of the following describes the number \(\displaystyle 300?\)

Possible Answers:

\(\displaystyle 5\) bundles of ten tens

\(\displaystyle 2\) bundles of ten tens

\(\displaystyle 4\) bundles of ten tens

\(\displaystyle 3\) bundles of ten tens

Correct answer:

\(\displaystyle 3\) bundles of ten tens

Explanation:

\(\displaystyle 100\) can be thought of as \(\displaystyle 1\) bundle of ten tens, called a "hundred." The image provided can show you that when we put ten rods of \(\displaystyle 10\) together, called a bundle, we get \(\displaystyle 100\)

If we have \(\displaystyle 300\), we have \(\displaystyle 3\) bundles of ten tens. 

10s to 100

10s to 100

10s to 100

Example Question #382 : Common Core Math: Grade 2

Which of the following describes the number \(\displaystyle 700?\)

Possible Answers:

\(\displaystyle 4\) bundles of ten tens

\(\displaystyle 5\) bundles of ten tens

\(\displaystyle 6\) bundles of ten tens

\(\displaystyle 7\) bundles of ten tens

Correct answer:

\(\displaystyle 7\) bundles of ten tens

Explanation:

\(\displaystyle 100\) can be thought of as \(\displaystyle 1\) bundle of ten tens, called a "hundred." The image provided can show you that when we put ten rods of \(\displaystyle 10\) together, called a bundle, we get \(\displaystyle 100\)

If we have \(\displaystyle 700\), we have \(\displaystyle 7\) bundles of ten tens. 

10s to 100           10s to 100           10s to 100

10s to 100           10s to 100

10s to 100           10s to 100

Example Question #383 : Common Core Math: Grade 2

Select the number with \(\displaystyle 7\) tens, \(\displaystyle 2\) hundreds, \(\displaystyle 3\) ones. 

Possible Answers:

\(\displaystyle 273\)

\(\displaystyle 327\)

\(\displaystyle 732\)

\(\displaystyle 723\)

Correct answer:

\(\displaystyle 273\)

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 \(\displaystyle 2\) hundreds, \(\displaystyle 7\) tens, and \(\displaystyle 3\) ones. This can be written as \(\displaystyle 273\)

Example Question #384 : Common Core Math: Grade 2

Select the number with \(\displaystyle 8\) tens, \(\displaystyle 1\) hundred, \(\displaystyle 4\) ones. 

Possible Answers:

\(\displaystyle 184\)

\(\displaystyle 148\)

\(\displaystyle 814\)

\(\displaystyle 481\)

Correct answer:

\(\displaystyle 184\)

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, \(\displaystyle 8\) tens, and \(\displaystyle 4\) ones. This can be written as \(\displaystyle 184\)

Example Question #385 : Common Core Math: Grade 2

Select the number with \(\displaystyle 9\) tens, \(\displaystyle 5\) hundreds, \(\displaystyle 6\) ones. 

 

Possible Answers:

\(\displaystyle 596\)

\(\displaystyle 956\)

\(\displaystyle 659\)

\(\displaystyle 695\)

Correct answer:

\(\displaystyle 596\)

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, \(\displaystyle 9\) tens, and \(\displaystyle 6\) ones. This can be written as \(\displaystyle 596\)

Example Question #386 : Common Core Math: Grade 2

Select the number with \(\displaystyle 1\) ten, \(\displaystyle 3\) hundreds, \(\displaystyle 5\) ones. 

Possible Answers:

\(\displaystyle 351\)

\(\displaystyle 153\)

\(\displaystyle 135\)

\(\displaystyle 315\)

Correct answer:

\(\displaystyle 315\)

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, \(\displaystyle 1\) ten, and \(\displaystyle 5\) ones. This can be written as \(\displaystyle 315\)

Example Question #387 : Common Core Math: Grade 2

Select the number with \(\displaystyle 6\) ones, \(\displaystyle 7\) tens, \(\displaystyle 2\) hundreds. 

Possible Answers:

\(\displaystyle 267\)

\(\displaystyle 672\)

\(\displaystyle 276\)

\(\displaystyle 726\)

Correct answer:

\(\displaystyle 276\)

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 \(\displaystyle 2\) hundreds, \(\displaystyle 7\) tens, and \(\displaystyle 6\) ones. This can be written as \(\displaystyle 276\)

Example Question #388 : Common Core Math: Grade 2

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

 

Possible Answers:

\(\displaystyle 297\)

\(\displaystyle 279\)

\(\displaystyle 792\)

\(\displaystyle 729\)

Correct answer:

\(\displaystyle 792\)

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, \(\displaystyle 9\) tens, and \(\displaystyle 2\) ones. This can be written as \(\displaystyle 792\)

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