415  Stamp
How many stamps? 2

Name : _________________

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There are 220 stamps which are 7-cent stamps and 8-cent stamps. Altogether they cost 1670 cents. How many 7-cent stamps are there?



There are 170 stamps which are 6-cent stamps and 5-cent stamps. Altogether they cost 920 cents. How many 6-cent stamps are there?



There are 230 stamps which are 4-cent stamps and 8-cent stamps. Altogether they cost 1440 cents. How many 4-cent stamps are there?



There are 160 stamps which are 8-cent stamps and 7-cent stamps. Altogether they cost 1220 cents. How many 8-cent stamps are there?



There are 190 stamps which are 6-cent stamps and 9-cent stamps. Altogether they cost 1500 cents. How many 6-cent stamps are there?

There are 120 stamps which are 7-cent stamps and 9-cent stamps. Altogether they cost 940 cents. How many 7-cent stamps are there?



There are 210 stamps which are 4-cent stamps and 6-cent stamps. Altogether they cost 1080 cents. How many 4-cent stamps are there?



오늘 3원짜리 8원짜리 우표 총 250 장을 사고, 1300 원을 지불 했을때, 몇개의 3원짜리 우표를 샀는가?



There are 210 stamps which are 4-cent stamps and 5-cent stamps. Altogether they cost 900 cents. How many 4-cent stamps are there?



There are 220 stamps which are 8-cent stamps and 9-cent stamps. Altogether they cost 1880 cents. How many 8-cent stamps are there?

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