Remember:
1 ten = 10 units
1 hundred = 10 tens or 100 units
1 thousand = 10 hundredsc or 1000 units


1. Write the numbers.
one hundred    four hundred   seven hundred   one thousand   
..............              ..............               ..................         ...............  
   three hundred   eight hundred   six hundred    five hundred
...................              ................      ....................     ..............   


2. Find the misisng number.
m + 200 = 700       m + 600 = 1000             m - 400 = 500
           m =............              m = .............                   m = .............
a - 300 = 400          a + 500 = 800                 a - 700 = 300
          a = ...............             a = ..............                    a = ..............


3. Draw a circle round the answer 1000
400 700 200 600               900 400 100 700

500 400 500 700               200 300 400 700

200 700 900 300               300 400 500 600

300 800 400 200               700 600 200 300