|
929 Stamp |
Name : _________________ |
||
|
There are 250 stamps which are 6-cent stamps and 8-cent stamps. Altogether they cost 1720 cents. How many 6-cent stamps are there? |
There are 220 stamps which are 5-cent stamps and 4-cent stamps. Altogether they cost 990 cents. How many 5-cent stamps are there? |
|
+( ) |
|
( )+ |
|
++[[ ]]++ |
||
| 929 140 100 110 150 80 ( 580 ) 110 100 140 100 130 ( 580 ) [[ 1160 ]] | ||
|
|
||