191  Stamp
How many stamps? 2

Name : _________________

refresh

There are 150 stamps which are 5-cent stamps and 3-cent stamps. Altogether they cost 590 cents. How many 5-cent stamps are there?



There are 210 stamps which are 4-cent stamps and 7-cent stamps. Altogether they cost 1200 cents. How many 4-cent stamps are there?



There are 170 stamps which are 6-cent stamps and 3-cent stamps. Altogether they cost 810 cents. How many 6-cent stamps are there?



There are 260 stamps which are 4-cent stamps and 7-cent stamps. Altogether they cost 1400 cents. How many 4-cent stamps are there?



There are 200 stamps which are 7-cent stamps and 9-cent stamps. Altogether they cost 1520 cents. How many 7-cent stamps are there?

There are 280 stamps which are 7-cent stamps and 8-cent stamps. Altogether they cost 2090 cents. How many 7-cent stamps are there?



There are 150 stamps which are 8-cent stamps and 7-cent stamps. Altogether they cost 1120 cents. How many 8-cent stamps are there?



오늘 4원짜리 3원짜리 우표 총 200 장을 사고, 670 원을 지불 했을때, 몇개의 4원짜리 우표를 샀는가?



There are 140 stamps which are 8-cent stamps and 9-cent stamps. Altogether they cost 1190 cents. How many 8-cent stamps are there?



There are 240 stamps which are 5-cent stamps and 9-cent stamps. Altogether they cost 1600 cents. How many 5-cent stamps are there?

+(         )

(         )+

++[[          ]]++