700  Stamp
How many stamps? 2

Name : _________________

refresh

There are 240 stamps which are 3-cent stamps and 8-cent stamps. Altogether they cost 1320 cents. How many 3-cent stamps are there?



There are 170 stamps which are 7-cent stamps and 8-cent stamps. Altogether they cost 1260 cents. How many 7-cent stamps are there?



There are 160 stamps which are 3-cent stamps and 6-cent stamps. Altogether they cost 690 cents. How many 3-cent stamps are there?



There are 230 stamps which are 6-cent stamps and 3-cent stamps. Altogether they cost 1140 cents. How many 6-cent stamps are there?



There are 180 stamps which are 6-cent stamps and 9-cent stamps. Altogether they cost 1230 cents. How many 6-cent stamps are there?

There are 150 stamps which are 3-cent stamps and 4-cent stamps. Altogether they cost 530 cents. How many 3-cent stamps are there?



There are 230 stamps which are 6-cent stamps and 9-cent stamps. Altogether they cost 1620 cents. How many 6-cent stamps are there?



오늘 5원짜리 4원짜리 우표 총 230 장을 사고, 1020 원을 지불 했을때, 몇개의 5원짜리 우표를 샀는가?



There are 210 stamps which are 5-cent stamps and 4-cent stamps. Altogether they cost 980 cents. How many 5-cent stamps are there?



There are 180 stamps which are 6-cent stamps and 3-cent stamps. Altogether they cost 780 cents. How many 6-cent stamps are there?

+(         )

(         )+

++[[          ]]++