212  Stamp
How many stamps? 2

Name : _________________

refresh

There are 120 stamps which are 8-cent stamps and 4-cent stamps. Altogether they cost 760 cents. How many 8-cent stamps are there?



There are 220 stamps which are 6-cent stamps and 4-cent stamps. Altogether they cost 1160 cents. How many 6-cent stamps are there?



There are 200 stamps which are 5-cent stamps and 7-cent stamps. Altogether they cost 1100 cents. How many 5-cent stamps are there?



There are 190 stamps which are 5-cent stamps and 7-cent stamps. Altogether they cost 1130 cents. How many 5-cent stamps are there?



There are 220 stamps which are 3-cent stamps and 7-cent stamps. Altogether they cost 1140 cents. How many 3-cent stamps are there?

There are 250 stamps which are 4-cent stamps and 5-cent stamps. Altogether they cost 1100 cents. How many 4-cent stamps are there?



There are 230 stamps which are 5-cent stamps and 7-cent stamps. Altogether they cost 1310 cents. How many 5-cent stamps are there?



오늘 7원짜리 5원짜리 우표 총 240 장을 사고, 1420 원을 지불 했을때, 몇개의 7원짜리 우표를 샀는가?



There are 220 stamps which are 8-cent stamps and 4-cent stamps. Altogether they cost 1440 cents. How many 8-cent stamps are there?



There are 270 stamps which are 4-cent stamps and 9-cent stamps. Altogether they cost 1680 cents. How many 4-cent stamps are there?

+(         )

(         )+

++[[          ]]++