427  Stamp
How many stamps? 2

Name : _________________

refresh

There are 220 stamps which are 4-cent stamps and 5-cent stamps. Altogether they cost 1010 cents. How many 4-cent stamps are there?



There are 170 stamps which are 3-cent stamps and 5-cent stamps. Altogether they cost 710 cents. How many 3-cent stamps are there?



There are 130 stamps which are 5-cent stamps and 8-cent stamps. Altogether they cost 800 cents. How many 5-cent stamps are there?



There are 220 stamps which are 4-cent stamps and 9-cent stamps. Altogether they cost 1380 cents. How many 4-cent stamps are there?



There are 200 stamps which are 4-cent stamps and 6-cent stamps. Altogether they cost 1060 cents. How many 4-cent stamps are there?

There are 180 stamps which are 4-cent stamps and 3-cent stamps. Altogether they cost 620 cents. How many 4-cent stamps are there?



There are 150 stamps which are 5-cent stamps and 9-cent stamps. Altogether they cost 990 cents. How many 5-cent stamps are there?



오늘 4원짜리 3원짜리 우표 총 240 장을 사고, 850 원을 지불 했을때, 몇개의 4원짜리 우표를 샀는가?



There are 140 stamps which are 4-cent stamps and 7-cent stamps. Altogether they cost 710 cents. How many 4-cent stamps are there?



There are 150 stamps which are 3-cent stamps and 9-cent stamps. Altogether they cost 930 cents. How many 3-cent stamps are there?

+(         )

(         )+

++[[          ]]++