943  Stamp
How many stamps? 2

Name : _________________

refresh

There are 200 stamps which are 6-cent stamps and 9-cent stamps. Altogether they cost 1500 cents. How many 6-cent stamps are there?



There are 130 stamps which are 4-cent stamps and 9-cent stamps. Altogether they cost 820 cents. How many 4-cent stamps are there?



There are 180 stamps which are 3-cent stamps and 7-cent stamps. Altogether they cost 780 cents. How many 3-cent stamps are there?



There are 190 stamps which are 3-cent stamps and 4-cent stamps. Altogether they cost 690 cents. How many 3-cent stamps are there?



There are 150 stamps which are 4-cent stamps and 9-cent stamps. Altogether they cost 950 cents. How many 4-cent stamps are there?

There are 210 stamps which are 8-cent stamps and 7-cent stamps. Altogether they cost 1600 cents. How many 8-cent stamps are there?



There are 240 stamps which are 8-cent stamps and 5-cent stamps. Altogether they cost 1530 cents. How many 8-cent stamps are there?



오늘 7원짜리 9원짜리 우표 총 210 장을 사고, 1670 원을 지불 했을때, 몇개의 7원짜리 우표를 샀는가?



There are 120 stamps which are 8-cent stamps and 6-cent stamps. Altogether they cost 860 cents. How many 8-cent stamps are there?



There are 220 stamps which are 3-cent stamps and 9-cent stamps. Altogether they cost 1140 cents. How many 3-cent stamps are there?

+(         )

(         )+

++[[          ]]++