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All About Rounding
Math in the Real World
100

Look at the number:  661


The 6 in the hundreds place is ____ times bigger than the 6 in the tens place.  

What is 10?

100

Look at the number:  375,081


The value of the 7 is _________________

What is 70,000.


7 ten thousands = 70,000

100

Use >, <, or = to compare:


45,895  ____  238,947

What is 45,895 < 238,947


Less Than

100

186 rounded to the nearest 10 is _________ 

What is 190?

100

College football teams noted the number of fans in attendance at three games.  

       GAME                            ATTENDANCE

Tennessee vs. Alabama            65,845 people 

Gators vs. Seminoles               68,352 people

Georgia vs. UCF                     67,684 people

The attendance at this game has an 8 in the thousands place.

  What is Gators vs. Seminoles.

200

True or False:

Each time a number moves over 1 place to the left it is 10 times greater than it was.

What is true.

200

Write three hundred fifty six thousand, two hundred eight in standard form.

What is 356,208.



200

Select the 2 correct answers that finish the comparison.      


                   42,613 < __________


A. 42,614

B. 42,514

C. 42,713


What is A and C?

200

463,067 rounded to the nearest ten thousand is ______________



460,000


TEN THOUSAND

200

Listed are some major cities and their populations:

   CITY                       POPULATION

Daytona                       229,171

Orlando                       255,124

Miami                         405,612


This city has a population of two hundred fifty-five thousand, one hundred twenty four.

What is Orlando?

300

This can be said to compare the thousands place and the tens place.


The thousands place is ____ times bigger than the tens place. 

What is 100? 


The hundreds is 10x bigger than tens.  The thousands is 10x bigger than hundreds.  10x10=100.

300

True or False?

The value of 4 in 943,268 is 4,000.

False.


The value of 4 is 40,000.

300

The Kindergarten students have 13,546 toys to play with.  First grade students have 13,585 toys. Second grade has 13,056 toys.  Third grade has 12,864.  This grade has the most amount of toys?

Who is First grade?

300

A male tortoise weighs 3,728 pounds.  A female tortoise weighs 2,843 pounds.  To the nearest hundred, what is the weight of the female tortoise?

What is 2,800 pounds.

300

Disney World had 350,080 visitors in October,         350,489 visitors in November, and 305,939 visitors in December.  This month had the least number of visitors.

What is December?

400

The number of lizards in American zoos is 20,000.  The number of birds is ten times the number of lizards.

How many birds are in American zoos?

What is 200,000 birds.

20,000 x 10 = 200,000

400

James went to the Sounds game.  He forgot the number of people that attended the game.  He does remember that the number had four digits and a 3 in the tens place.  

The number James could be thinking of is ______.

What is 1237?

Must have a 3 in the tens and be a four digit number.

400

Compare using <, >, or =.


400,000+5,000+800+90+1 _____ four hundred twenty five thousand, two hundred sixty five.


405,891 < 425,265

Less Than

400

The number of fans who came to the Titans game last season rounded to the nearest ten thousand was 360,000.  Pick the 2 options that could be the exact attendance.

A. 362,957

B. 400,000

C. 357,486

D. 353,857

What is A and C. 

400

Make the largest number using all of the following digits:


   4, 7, 3, 8, 0, 6

What is 876,430?

500

Jenny wants to draw 3,200 using 100 flats.  How many 100 flats will she draw? 

What is 32?  


3 thousands = 30 hundreds.  30 hundreds + 2 hundreds = 32 hundreds.

500

(7x100,000)+(3x10,000)+(6x1,000)+(1x100)+(4x10)+(4x1) in standard form?


What is 736,144

500

Ms. Sharon wrote a comparison on the board, as shown.

56,625  ____  57,243

Bobby says 56,625 is greater.  Dylan says 57,243 is greater.

Who is correct?

Who is Dylan?

500

The number 25,__00 is missing a digit.  The number rounded to the nearest thousand is 26,000.  List all of the possibilities for the missing digit.

What is 5,6,7,8 or 9.

500

In the 2010 New York City Marathon, 42,629 people finished the race and received a medal.  If you were in charge of ordering medals for the next race,what would you round this number to, to be sure that there are enough medals for every racer?

43,000