761  Stamp
How many stamps? 1

Name : _________________

 

refresh

There are 190 stamps which are 8-cent stamps and 4-cent stamps. Altogether they cost 1240 cents. How many 8-cent stamps are there?



There are 140 stamps which are 7-cent stamps and 4-cent stamps. Altogether they cost 800 cents. How many 7-cent stamps are there?



There are 280 stamps which are 3-cent stamps and 7-cent stamps. Altogether they cost 1360 cents. How many 3-cent stamps are there?



There are 180 stamps which are 8-cent stamps and 5-cent stamps. Altogether they cost 1230 cents. How many 8-cent stamps are there?



There are 160 stamps which are 8-cent stamps and 3-cent stamps. Altogether they cost 1030 cents. How many 8-cent stamps are there?



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 160 stamps which are 7-cent stamps and 5-cent stamps. Altogether they cost 1000 cents. How many 7-cent stamps are there?



There are 180 stamps which are 3-cent stamps and 4-cent stamps. Altogether they cost 600 cents. How many 3-cent stamps are there?



There are 270 stamps which are 6-cent stamps and 4-cent stamps. Altogether they cost 1380 cents. How many 6-cent stamps are there?



There are 220 stamps which are 7-cent stamps and 3-cent stamps. Altogether they cost 1180 cents. How many 7-cent stamps are there?



+(         )

 

(         )+

++[[          ]]++

761    120 80 150 110 110 ( 570 )   130 100 120 150 130 ( 630 )   [[ 1200 ]]