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Comparing four-digit numbers

Which is more, 8,011 or 7,987?  Place those numbers (approximately) on the number line.

Which is more, 2,395 or 2,402?  Place those numbers (approximately) on the number line.

Compare first how many THOUSANDS the numbers have.
Then if they have the same amount of thousands, compare the ___________________.
Then if they also have the same amount of hundreds, compare the ________________.
And if everything else is the same, then compare the ONES.

1. Circle the greatest number.

a.  7,500
    6,500
    8,500
b.  5,400
    5,200
    5,700
c.  2,400
    4,400
    8,400
d.  3,500
    3,200
    3,300
e.  5,078
    5,098
    5,100
f.  2,770
    2,750
    2,760
g.  3,805
    3,811
    3,809
h.  5,743
    5,734
    5,721
i.   2,399
    4,989
    7,011
j.   4,500
    6,101
    3,099
k.  9,056
    9,834
    9,275
l.   6,309
    9,603
    3,609

2. Write < or > between the numbers.

a.

1,050   <  5,095

2,400      2,750

6,005      4,500

b.

220        1,020

8,060      6,999

1,007      1,705

c.

1,307      1,032

4,906      6,029

5,077      5,570

d.

4,012      4,284

5,008      5,040

1,890      1,897



3. One of the three numbers fits on the empty line so that the comparisons are true.
    Which one? Circle the number (or write it on the line).

a.  6,550   7,601    7,550

7,500  < _____________ <  7,600

b.  2,435   2,338   2,350

2,335  < _____________ <  2,345

c.  7,099   7,110   7,080

7,089  < _____________ <  7,100

d.  1,232   1,212   1,223

1,203  < _____________ <  1,222

e.  8,752   8,502    7,802

8,459  < _____________ <  8,510

f.  4,216   4,111   4,096

4,097  < _____________ <  4,200

g.  1,809   1,908   1,890

1,806  < _____________ <  1,812

h.  3,489   3,589   3,458

3,469  < _____________ <  3,579

4. Compare. Write  <  ,   >  , or  =  in the box.

a.

700 + 50 

    700 + 30 + 4
 
c.

     20 + 3000 

   300 + 2000

 
e.

4000 + 80  

     80 + 4 + 800
b.

500 + 6000 

   6000 + 500
 
d.

       900 + 8 

   9000 + 8

 

f.

30 + 6000 + 3 

   300 + 60 + 3000
 
g.

800 + 7000 + 2 

   700 + 80 + 7000
 
h.

  500 + 3000 + 80 + 6 

   6 + 80 + 500 + 3000

5. Write the numbers in order from smallest to greatest. The number line can help.

 3899    3040    4330    4203    4003

______________ < _______________ < ______________ < ______________ <  ______________




This lesson is taken from Maria Miller's book Math Mammoth Place Value 3, and posted at www.HomeschoolMath.net with permission from the author. Copyright © Maria Miller.


Math Mammoth Place Value 3

A self-teaching worktext for 3rd grade that covers four-digit place value, mental addition & subtraction with four-digit numbers, comparing, rounding, and estimating.

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