|
211 Stamp |
Name : _________________ |
||
|
There are 200 stamps which are 7-cent stamps and 5-cent stamps. Altogether they cost 1140 cents. How many 7-cent stamps are there? |
There are 230 stamps which are 4-cent stamps and 8-cent stamps. Altogether they cost 1240 cents. How many 4-cent stamps are there? |
|
+( ) |
|
( )+ |
|
++[[ ]]++ |
||
| 211 70 140 130 100 100 ( 540 ) 150 100 140 90 140 ( 620 ) [[ 1160 ]] | ||
|
|
||