646  Stamp
How many stamps? 2

Name : _________________

refresh

There are 170 stamps which are 8-cent stamps and 5-cent stamps. Altogether they cost 1180 cents. How many 8-cent stamps are there?



There are 250 stamps which are 7-cent stamps and 5-cent stamps. Altogether they cost 1530 cents. How many 7-cent stamps are there?



There are 210 stamps which are 7-cent stamps and 5-cent stamps. Altogether they cost 1350 cents. How many 7-cent stamps are there?



There are 210 stamps which are 7-cent stamps and 5-cent stamps. Altogether they cost 1250 cents. How many 7-cent stamps are there?



There are 270 stamps which are 7-cent stamps and 5-cent stamps. Altogether they cost 1630 cents. How many 7-cent stamps are there?

There are 270 stamps which are 6-cent stamps and 9-cent stamps. Altogether they cost 1980 cents. How many 6-cent stamps are there?



There are 140 stamps which are 7-cent stamps and 6-cent stamps. Altogether they cost 910 cents. How many 7-cent stamps are there?



오늘 3원짜리 6원짜리 우표 총 170 장을 사고, 810 원을 지불 했을때, 몇개의 3원짜리 우표를 샀는가?



There are 230 stamps which are 5-cent stamps and 7-cent stamps. Altogether they cost 1330 cents. How many 5-cent stamps are there?



There are 280 stamps which are 6-cent stamps and 3-cent stamps. Altogether they cost 1290 cents. How many 6-cent stamps are there?

+(         )

(         )+

++[[          ]]++