|
502 Stamp |
Name : _________________ |
||
|
There are 190 stamps which are 5-cent stamps and 6-cent stamps. Altogether they cost 1040 cents. How many 5-cent stamps are there? |
There are 250 stamps which are 6-cent stamps and 3-cent stamps. Altogether they cost 1140 cents. How many 6-cent stamps are there? |
|
+( ) |
|
( )+ |
|
++[[ ]]++ |
||
| 502 100 110 130 80 120 ( 540 ) 130 140 90 130 120 ( 610 ) [[ 1150 ]] | ||
|
|
||