969  Stamp
How many stamps? 2

Name : _________________

refresh

There are 220 stamps which are 3-cent stamps and 9-cent stamps. Altogether they cost 1140 cents. How many 3-cent stamps are there?



There are 180 stamps which are 3-cent stamps and 8-cent stamps. Altogether they cost 1090 cents. How many 3-cent stamps are there?



There are 130 stamps which are 6-cent stamps and 8-cent stamps. Altogether they cost 880 cents. How many 6-cent stamps are there?



There are 230 stamps which are 5-cent stamps and 8-cent stamps. Altogether they cost 1450 cents. How many 5-cent stamps are there?



There are 130 stamps which are 3-cent stamps and 5-cent stamps. Altogether they cost 490 cents. How many 3-cent stamps are there?

There are 200 stamps which are 5-cent stamps and 9-cent stamps. Altogether they cost 1440 cents. How many 5-cent stamps are there?



There are 220 stamps which are 5-cent stamps and 7-cent stamps. Altogether they cost 1320 cents. How many 5-cent stamps are there?



오늘 3원짜리 4원짜리 우표 총 150 장을 사고, 510 원을 지불 했을때, 몇개의 3원짜리 우표를 샀는가?



There are 170 stamps which are 3-cent stamps and 4-cent stamps. Altogether they cost 600 cents. How many 3-cent stamps are there?



There are 220 stamps which are 3-cent stamps and 4-cent stamps. Altogether they cost 790 cents. How many 3-cent stamps are there?

+(         )

(         )+

++[[          ]]++