549  Stamp
How many stamps? 2

Name : _________________

refresh

There are 190 stamps which are 6-cent stamps and 9-cent stamps. Altogether they cost 1410 cents. How many 6-cent stamps are there?



There are 130 stamps which are 7-cent stamps and 5-cent stamps. Altogether they cost 810 cents. How many 7-cent stamps are there?



There are 180 stamps which are 3-cent stamps and 4-cent stamps. Altogether they cost 630 cents. How many 3-cent stamps are there?



There are 180 stamps which are 8-cent stamps and 3-cent stamps. Altogether they cost 1190 cents. How many 8-cent stamps are there?



There are 170 stamps which are 8-cent stamps and 3-cent stamps. Altogether they cost 960 cents. How many 8-cent stamps are there?

There are 150 stamps which are 7-cent stamps and 4-cent stamps. Altogether they cost 870 cents. How many 7-cent stamps are there?



There are 220 stamps which are 8-cent stamps and 3-cent stamps. Altogether they cost 1210 cents. How many 8-cent stamps are there?



오늘 6원짜리 7원짜리 우표 총 220 장을 사고, 1390 원을 지불 했을때, 몇개의 6원짜리 우표를 샀는가?



There are 170 stamps which are 8-cent stamps and 3-cent stamps. Altogether they cost 1060 cents. How many 8-cent stamps are there?



There are 180 stamps which are 7-cent stamps and 8-cent stamps. Altogether they cost 1340 cents. How many 7-cent stamps are there?

+(         )

(         )+

++[[          ]]++