330  Stamp
How many stamps? 2

Name : _________________

refresh

There are 200 stamps which are 8-cent stamps and 3-cent stamps. Altogether they cost 1000 cents. How many 8-cent stamps are there?



There are 230 stamps which are 4-cent stamps and 3-cent stamps. Altogether they cost 840 cents. How many 4-cent stamps are there?



There are 240 stamps which are 8-cent stamps and 7-cent stamps. Altogether they cost 1800 cents. How many 8-cent stamps are there?



There are 190 stamps which are 4-cent stamps and 3-cent stamps. Altogether they cost 680 cents. How many 4-cent stamps are there?



There are 220 stamps which are 7-cent stamps and 4-cent stamps. Altogether they cost 1210 cents. How many 7-cent stamps are there?

There are 150 stamps which are 6-cent stamps and 4-cent stamps. Altogether they cost 800 cents. How many 6-cent stamps are there?



There are 170 stamps which are 7-cent stamps and 3-cent stamps. Altogether they cost 830 cents. How many 7-cent stamps are there?



오늘 3원짜리 6원짜리 우표 총 210 장을 사고, 960 원을 지불 했을때, 몇개의 3원짜리 우표를 샀는가?



There are 230 stamps which are 6-cent stamps and 9-cent stamps. Altogether they cost 1710 cents. How many 6-cent stamps are there?



There are 150 stamps which are 5-cent stamps and 7-cent stamps. Altogether they cost 870 cents. How many 5-cent stamps are there?

+(         )

(         )+

++[[          ]]++