145  Stamp
How many stamps? 2

Name : _________________

refresh

There are 270 stamps which are 6-cent stamps and 7-cent stamps. Altogether they cost 1740 cents. How many 6-cent stamps are there?



There are 170 stamps which are 6-cent stamps and 4-cent stamps. Altogether they cost 860 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?



There are 190 stamps which are 7-cent stamps and 4-cent stamps. Altogether they cost 1030 cents. How many 7-cent stamps are there?



There are 180 stamps which are 6-cent stamps and 4-cent stamps. Altogether they cost 920 cents. How many 6-cent stamps are there?

There are 200 stamps which are 4-cent stamps and 9-cent stamps. Altogether they cost 1450 cents. How many 4-cent stamps are there?



There are 200 stamps which are 3-cent stamps and 5-cent stamps. Altogether they cost 780 cents. How many 3-cent stamps are there?



오늘 3원짜리 5원짜리 우표 총 260 장을 사고, 1000 원을 지불 했을때, 몇개의 3원짜리 우표를 샀는가?



There are 180 stamps which are 3-cent stamps and 8-cent stamps. Altogether they cost 790 cents. How many 3-cent stamps are there?



There are 170 stamps which are 7-cent stamps and 5-cent stamps. Altogether they cost 1050 cents. How many 7-cent stamps are there?

+(         )

(         )+

++[[          ]]++