436  Stamp
How many stamps? 2

Name : _________________

refresh

There are 250 stamps which are 3-cent stamps and 8-cent stamps. Altogether they cost 1250 cents. How many 3-cent stamps are there?



There are 210 stamps which are 8-cent stamps and 7-cent stamps. Altogether they cost 1550 cents. How many 8-cent stamps are there?



There are 210 stamps which are 7-cent stamps and 8-cent stamps. Altogether they cost 1560 cents. How many 7-cent stamps are there?



There are 280 stamps which are 5-cent stamps and 4-cent stamps. Altogether they cost 1270 cents. How many 5-cent stamps are there?



There are 140 stamps which are 8-cent stamps and 7-cent stamps. Altogether they cost 1070 cents. How many 8-cent stamps are there?

There are 230 stamps which are 8-cent stamps and 5-cent stamps. Altogether they cost 1540 cents. How many 8-cent stamps are there?



There are 220 stamps which are 8-cent stamps and 9-cent stamps. Altogether they cost 1890 cents. How many 8-cent stamps are there?



오늘 5원짜리 8원짜리 우표 총 140 장을 사고, 910 원을 지불 했을때, 몇개의 5원짜리 우표를 샀는가?



There are 220 stamps which are 4-cent stamps and 6-cent stamps. Altogether they cost 1060 cents. How many 4-cent stamps are there?



There are 150 stamps which are 7-cent stamps and 4-cent stamps. Altogether they cost 900 cents. How many 7-cent stamps are there?

+(         )

(         )+

++[[          ]]++