|
113 Stamp |
Name : _________________ |
||
|
There are 200 stamps which are 4-cent stamps and 9-cent stamps. Altogether they cost 1150 cents. How many 4-cent stamps are there? |
There are 260 stamps which are 3-cent stamps and 9-cent stamps. Altogether they cost 1440 cents. How many 3-cent stamps are there? |
|
+( ) |
|
( )+ |
|
++[[ ]]++ |
||
| 113 130 140 90 130 140 ( 630 ) 150 100 150 130 140 ( 670 ) [[ 1300 ]] | ||
|
|
||