131  Stamp
How many stamps? 2

Name : _________________

refresh

There are 200 stamps which are 7-cent stamps and 6-cent stamps. Altogether they cost 1350 cents. How many 7-cent stamps are there?



There are 230 stamps which are 4-cent stamps and 9-cent stamps. Altogether they cost 1470 cents. How many 4-cent stamps are there?



There are 160 stamps which are 8-cent stamps and 4-cent stamps. Altogether they cost 1080 cents. How many 8-cent stamps are there?



There are 260 stamps which are 5-cent stamps and 8-cent stamps. Altogether they cost 1660 cents. How many 5-cent stamps are there?



There are 200 stamps which are 6-cent stamps and 5-cent stamps. Altogether they cost 1100 cents. How many 6-cent stamps are there?

There are 130 stamps which are 4-cent stamps and 3-cent stamps. Altogether they cost 460 cents. How many 4-cent stamps are there?



There are 140 stamps which are 5-cent stamps and 3-cent stamps. Altogether they cost 580 cents. How many 5-cent stamps are there?



오늘 7원짜리 3원짜리 우표 총 240 장을 사고, 1160 원을 지불 했을때, 몇개의 7원짜리 우표를 샀는가?



There are 210 stamps which are 7-cent stamps and 5-cent stamps. Altogether they cost 1310 cents. How many 7-cent stamps are there?



There are 200 stamps which are 4-cent stamps and 3-cent stamps. Altogether they cost 720 cents. How many 4-cent stamps are there?

+(         )

(         )+

++[[          ]]++