Step: 1

Jason spent $34 on the book.

Step: 2

The number 34 lies in between 30 and 40.

Step: 3

The number 34 is closer to 30 than to 40.

Step: 4

So, the cost of the book $34 rounded to the nearest ten is $30.

Correct Answer is : $30

Step: 1

Jeff spent $78 on a trip.

Step: 2

The number 78 lies in between 70 and 80.

Step: 3

The number 78 is closer to 80 than to 70.

Step: 4

So, the amount $78 rounded to the nearest ten is $80.

Correct Answer is : $80

Step: 1

The amount spent by Justin and Arthur at Disney World is $232.

Step: 2

The number 232 is between 200 and 300. 232 is closer to 200 than to 300.

Step: 3

So, the amount $232 rounded to the nearest hundred is $200.

Correct Answer is : $200

Step: 1

The number 365 is between the numbers 300 and 400.

Step: 2

350 is half way between 400 and 300.

Step: 3

As 365 > 350, 365 is closer to 400 than to 300.

Step: 4

So the amount $365 rounded to the nearest hundred is $400.

Correct Answer is : $400

Step: 1

Represent 147 on a number line as shown below.

Step: 2

147 is between 100 and 200, but closer to 100.

Step: 3

So, 147 rounded to the nearest hundred is 100.

Correct Answer is : 100

Step: 1

Represent the number 2,630 on a number line.

Step: 2

The number of people who visited the art exhibition is 2,630.

Step: 3

The number 2,630 is between 2,600 and 2,700.

Step: 4

The number 2,630 is closer to 2,600 than to 2,700.

Step: 5

So, the number 2,630 rounded off to the nearest hundred is 2,600.

Correct Answer is : 2,600

Step: 1

The number 320 is between the numbers 300 and 400.

Step: 2

Note the digit in the tens place of the number.

Step: 3

If the digit in the tens place is less than 5, round down to 300. If the digit is greater than or equal to 5, then round up to 400.

Step: 4

As 2 < 5, round down 320 to 300.

Step: 5

So, rounding 320 to the nearest hundred gives us 300.

Correct Answer is : 300

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