|
558 Stamp |
Name : _________________ |
||
|
There are 220 stamps which are 4-cent stamps and 7-cent stamps. Altogether they cost 1240 cents. How many 4-cent stamps are there? |
There are 190 stamps which are 8-cent stamps and 3-cent stamps. Altogether they cost 1220 cents. How many 8-cent stamps are there? |
|
+( ) |
|
( )+ |
|
++[[ ]]++ |
||
| 558 100 140 70 70 120 ( 500 ) 130 130 110 100 70 ( 540 ) [[ 1040 ]] | ||
|
|
||