858  Stamp
How many stamps? 2

Name : _________________

refresh

There are 190 stamps which are 5-cent stamps and 7-cent stamps. Altogether they cost 1070 cents. How many 5-cent stamps are there?



There are 170 stamps which are 3-cent stamps and 6-cent stamps. Altogether they cost 780 cents. How many 3-cent stamps are there?



There are 200 stamps which are 4-cent stamps and 9-cent stamps. Altogether they cost 1100 cents. How many 4-cent stamps are there?



There are 250 stamps which are 3-cent stamps and 8-cent stamps. Altogether they cost 1400 cents. How many 3-cent stamps are there?



There are 170 stamps which are 3-cent stamps and 6-cent stamps. Altogether they cost 720 cents. How many 3-cent stamps are there?

There are 230 stamps which are 5-cent stamps and 7-cent stamps. Altogether they cost 1370 cents. How many 5-cent stamps are there?



There are 190 stamps which are 5-cent stamps and 7-cent stamps. Altogether they cost 1110 cents. How many 5-cent stamps are there?



오늘 7원짜리 3원짜리 우표 총 170 장을 사고, 790 원을 지불 했을때, 몇개의 7원짜리 우표를 샀는가?



There are 230 stamps which are 8-cent stamps and 9-cent stamps. Altogether they cost 1970 cents. How many 8-cent stamps are there?



There are 240 stamps which are 6-cent stamps and 4-cent stamps. Altogether they cost 1260 cents. How many 6-cent stamps are there?

+(         )

(         )+

++[[          ]]++