# Comparing four-digit numbersA free lesson for 3rd grade math

 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    7,5507,500  < _____________ <  7,600 b.  2,435   2,338   2,3502,335  < _____________ <  2,345 c.  7,099   7,110   7,0807,089  < _____________ <  7,100 d.  1,232   1,212   1,2231,203  < _____________ <  1,222 e.  8,752   8,502    7,8028,459  < _____________ <  8,510 f.  4,216   4,111   4,0964,097  < _____________ <  4,200 g.  1,809   1,908   1,8901,806  < _____________ <  1,812 h.  3,489   3,589   3,4583,469  < _____________ <  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 my book Math Mammoth Place Value 3.

#### 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.