|
781 Stamp |
Name : _________________ |
||
|
There are 240 stamps which are 8-cent stamps and 9-cent stamps. Altogether they cost 2030 cents. How many 8-cent stamps are there? |
There are 170 stamps which are 6-cent stamps and 3-cent stamps. Altogether they cost 720 cents. How many 6-cent stamps are there? |
|
+( ) |
|
( )+ |
|
++[[ ]]++ |
||
| 781 130 100 120 110 120 ( 580 ) 70 120 150 130 120 ( 590 ) [[ 1170 ]] | ||
|
|
||