930  Stamp
How many stamps? 2

Name : _________________

refresh

There are 260 stamps which are 3-cent stamps and 7-cent stamps. Altogether they cost 1260 cents. How many 3-cent stamps are there?



There are 200 stamps which are 3-cent stamps and 4-cent stamps. Altogether they cost 680 cents. How many 3-cent stamps are there?



There are 250 stamps which are 5-cent stamps and 8-cent stamps. Altogether they cost 1610 cents. How many 5-cent stamps are there?



There are 170 stamps which are 3-cent stamps and 6-cent stamps. Altogether they cost 780 cents. How many 3-cent stamps are there?



There are 240 stamps which are 5-cent stamps and 8-cent stamps. Altogether they cost 1530 cents. How many 5-cent stamps are there?

There are 220 stamps which are 8-cent stamps and 7-cent stamps. Altogether they cost 1670 cents. How many 8-cent stamps are there?



There are 270 stamps which are 5-cent stamps and 9-cent stamps. Altogether they cost 1870 cents. How many 5-cent stamps are there?



오늘 3원짜리 7원짜리 우표 총 190 장을 사고, 970 원을 지불 했을때, 몇개의 3원짜리 우표를 샀는가?



There are 260 stamps which are 5-cent stamps and 9-cent stamps. Altogether they cost 1780 cents. How many 5-cent stamps are there?



There are 190 stamps which are 7-cent stamps and 6-cent stamps. Altogether they cost 1260 cents. How many 7-cent stamps are there?

+(         )

(         )+

++[[          ]]++