|
740 Stamp |
Name : _________________ |
||
|
There are 230 stamps which are 6-cent stamps and 3-cent stamps. Altogether they cost 1050 cents. How many 6-cent stamps are there? |
There are 190 stamps which are 7-cent stamps and 8-cent stamps. Altogether they cost 1410 cents. How many 7-cent stamps are there? |
|
+( ) |
|
( )+ |
|
++[[ ]]++ |
||
| 740 120 100 110 150 100 ( 580 ) 110 120 70 120 120 ( 540 ) [[ 1120 ]] | ||
|
|
||