987  Stamp
How many stamps? 2

Name : _________________

refresh

There are 230 stamps which are 4-cent stamps and 5-cent stamps. Altogether they cost 1000 cents. How many 4-cent stamps are there?



There are 220 stamps which are 6-cent stamps and 5-cent stamps. Altogether they cost 1250 cents. How many 6-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 150 stamps which are 3-cent stamps and 7-cent stamps. Altogether they cost 770 cents. How many 3-cent stamps are there?



There are 170 stamps which are 6-cent stamps and 8-cent stamps. Altogether they cost 1200 cents. How many 6-cent stamps are there?

There are 250 stamps which are 4-cent stamps and 6-cent stamps. Altogether they cost 1240 cents. How many 4-cent stamps are there?



There are 170 stamps which are 3-cent stamps and 8-cent stamps. Altogether they cost 960 cents. How many 3-cent stamps are there?



오늘 3원짜리 9원짜리 우표 총 240 장을 사고, 1380 원을 지불 했을때, 몇개의 3원짜리 우표를 샀는가?



There are 230 stamps which are 6-cent stamps and 7-cent stamps. Altogether they cost 1480 cents. How many 6-cent stamps are there?



There are 180 stamps which are 6-cent stamps and 5-cent stamps. Altogether they cost 980 cents. How many 6-cent stamps are there?

+(         )

(         )+

++[[          ]]++