Common Core: 4th Grade Math : Common Core Math: Grade 4

Study concepts, example questions & explanations for Common Core: 4th Grade Math

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Example Questions

Example Question #192 : Generalize Place Value Understanding For Multi Digit Whole Numbers

Round  to the nearest thousand.

Possible Answers:

Correct answer:

Explanation:

When we round a number to the nearest thousand we look to the hundreds place to tell us if we round up or down.

If the number in our hundreds place is  or greater, we round up. If the number in the hundreds place is  or less, we round down. When we round up, the number in the thousands place increases by  and all the other numbers to the right become . When we round down, the number in the thousands place stays the same and all the other numbers to the right become .

In this case,  is greater than  so our rounded number is 

Example Question #431 : Identifying Place Value

Round  to the nearest thousand.

Possible Answers:

Correct answer:

Explanation:

When we round a number to the nearest thousand we look to the hundreds place to tell us if we round up or down.

If the number in our hundreds place is  or greater, we round up. If the number in the hundreds place is  or less, we round down. When we round up, the number in the thousands place increases by  and all the other numbers to the right become . When we round down, the number in the thousands place stays the same and all the other numbers to the right become .

In this case,  is equal to  so our rounded number is 

Example Question #193 : Generalize Place Value Understanding For Multi Digit Whole Numbers

Round  to the nearest hundred thousand.

Possible Answers:

Correct answer:

Explanation:

When we round a number to the nearest hundred thousand we look to the ten thousands place to tell us if we round up or down.

If the number in our ten thousands place is  or greater, we round up. If the number in the ten thousands place is  or less, we round down. When we round up, the number in the hundred thousands place increases by  and all the other numbers to the right become . When we round down, the number in the hundred thousands place stays the same and all the other numbers to the right become .

In this case,  is less than  so our rounded number is 

Example Question #194 : Generalize Place Value Understanding For Multi Digit Whole Numbers

Round  to the nearest thousand.

Possible Answers:

Correct answer:

Explanation:

When we round a number to the nearest thousand we look to the hundreds place to tell us if we round up or down.

If the number in our hundreds place is  or greater, we round up. If the number in the hundreds place is  or less, we round down. When we round up, the number in the thousands place increases by  and all the other numbers to the right become . When we round down, the number in the thousands place stays the same and all the other numbers to the right become .

In this case,  is equal to  so our rounded number is 

Example Question #193 : Generalize Place Value Understanding For Multi Digit Whole Numbers

Round  to the nearest ten.

Possible Answers:

Correct answer:

Explanation:

When we round a number to the nearest ten we look to the ones place to tell us if we round up or down.

If the number in our ones place is  or greater, we round up. If the number in the ones place is  or less, we round down. When we round up, the number in the tens place increases by  and all the other numbers to the right become . When we round down, the number in the tens place stays the same and all the other numbers to the right become .

In this case,  is less than  so our rounded number is 

Example Question #194 : Generalize Place Value Understanding For Multi Digit Whole Numbers

Round  to the nearest hundred.

Possible Answers:

Correct answer:

Explanation:

When we round a number to the nearest hundred we look to the tens place to tell us if we round up or down.

If the number in our tens place is  or greater, we round up. If the number in the tens place is  or less, we round down. When we round up, the number in the hundreds place increases by  and all the other numbers to the right become . When we round down, the number in the hundreds place stays the same and all the other numbers to the right become .

In this case,  is less than  so our rounded number is 

Example Question #352 : How To Find The Part From The Whole

Round  to the nearest ten.

Possible Answers:

Correct answer:

Explanation:

When we round a number to the nearest ten we look to the ones place to tell us if we round up or down.

If the number in our ones place is  or greater, we round up. If the number in the ones place is  or less, we round down. When we round up, the number in the tens place increases by  and all the other numbers to the right become . When we round down, the number in the tens place stays the same and all the other numbers to the right become .

In this case,  is greater than  so our rounded number is 

Example Question #411 : Common Core Math: Grade 4

Round  to the nearest ten.

Possible Answers:

Correct answer:

Explanation:

When we round a number to the nearest ten we look to the ones place to tell us if we round up or down.

If the number in our ones place is  or greater, we round up. If the number in the ones place is  or less, we round down. When we round up, the number in the tens place increases by  and all the other numbers to the right become . When we round down, the number in the tens place stays the same and all the other numbers to the right become .

In this case,  is greater than  so our rounded number is 

Example Question #202 : Generalize Place Value Understanding For Multi Digit Whole Numbers

Round  to the nearest hundred.

Possible Answers:

Correct answer:

Explanation:

When we round a number to the nearest hundred we look to the tens place to tell us if we round up or down.

If the number in our tens place is  or greater, we round up. If the number in the tens place is  or less, we round down. When we round up, the number in the hundreds place increases by  and all the other numbers to the right become . When we round down, the number in the hundreds place stays the same and all the other numbers to the right become .

In this case,  is less than  so our rounded number is 

Example Question #1 : How To Multiply

Solve:

Possible Answers:

Correct answer:

Explanation:

We can make a rectangular array using squares to help us solve this problem. Our multiplication problem is ; therefore, the rectangular array should have  squares across the top row and  squares down the first column. The rectangular array should look like the image below:

Screen shot 2016 05 18 at 10.32.59 am

We can count the squares to find our answer. The correct answer is is 

In order to solve this problem using multiplication, we must multiply the multiplier by each digit of the multiplicand to get the answer, which is called the product.

For this problem,  is the multiplier and  is the multiplicand. 

First, we multiply  and 

Next, we multiply and 

 

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