610  Stamp
How many stamps? 2

Name : _________________

refresh

There are 210 stamps which are 7-cent stamps and 5-cent stamps. Altogether they cost 1270 cents. How many 7-cent stamps are there?



There are 240 stamps which are 7-cent stamps and 5-cent stamps. Altogether they cost 1440 cents. How many 7-cent stamps are there?



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 220 stamps which are 7-cent stamps and 5-cent stamps. Altogether they cost 1280 cents. How many 7-cent stamps are there?



There are 190 stamps which are 8-cent stamps and 5-cent stamps. Altogether they cost 1340 cents. How many 8-cent stamps are there?

There are 270 stamps which are 7-cent stamps and 5-cent stamps. Altogether they cost 1630 cents. How many 7-cent stamps are there?



There are 250 stamps which are 6-cent stamps and 4-cent stamps. Altogether they cost 1300 cents. How many 6-cent stamps are there?



오늘 5원짜리 6원짜리 우표 총 160 장을 사고, 860 원을 지불 했을때, 몇개의 5원짜리 우표를 샀는가?



There are 210 stamps which are 6-cent stamps and 4-cent stamps. Altogether they cost 1040 cents. How many 6-cent stamps are there?



There are 240 stamps which are 5-cent stamps and 7-cent stamps. Altogether they cost 1420 cents. How many 5-cent stamps are there?

+(         )

(         )+

++[[          ]]++