929 Stamp |
Name : _________________ |
||
There are 220 stamps which are 3-cent stamps and 4-cent stamps. Altogether they cost 740 cents. How many 3-cent stamps are there? |
There are 150 stamps which are 4-cent stamps and 8-cent stamps. Altogether they cost 840 cents. How many 4-cent stamps are there? |
+( ) |
|
( )+ |
++[[ ]]++ |
||
929 140 90 120 70 80 ( 500 ) 90 130 100 110 100 ( 530 ) [[ 1030 ]] | ||
|