818  Stamp
How many stamps? 2

Name : _________________

refresh

There are 180 stamps which are 7-cent stamps and 8-cent stamps. Altogether they cost 1310 cents. How many 7-cent stamps are there?



There are 140 stamps which are 6-cent stamps and 5-cent stamps. Altogether they cost 790 cents. How many 6-cent stamps are there?



There are 190 stamps which are 4-cent stamps and 8-cent stamps. Altogether they cost 1080 cents. How many 4-cent stamps are there?



There are 200 stamps which are 5-cent stamps and 8-cent stamps. Altogether they cost 1180 cents. How many 5-cent stamps are there?



There are 190 stamps which are 5-cent stamps and 3-cent stamps. Altogether they cost 770 cents. How many 5-cent stamps are there?

There are 180 stamps which are 5-cent stamps and 9-cent stamps. Altogether they cost 1180 cents. How many 5-cent stamps are there?



There are 230 stamps which are 7-cent stamps and 5-cent stamps. Altogether they cost 1390 cents. How many 7-cent stamps are there?



오늘 8원짜리 5원짜리 우표 총 230 장을 사고, 1600 원을 지불 했을때, 몇개의 8원짜리 우표를 샀는가?



There are 220 stamps which are 3-cent stamps and 5-cent stamps. Altogether they cost 880 cents. How many 3-cent stamps are there?



There are 140 stamps which are 8-cent stamps and 9-cent stamps. Altogether they cost 1170 cents. How many 8-cent stamps are there?

+(         )

(         )+

++[[          ]]++