402  Stamp
How many stamps? 2

Name : _________________

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There are 210 stamps which are 3-cent stamps and 7-cent stamps. Altogether they cost 1110 cents. How many 3-cent stamps are there?



There are 180 stamps which are 3-cent stamps and 9-cent stamps. Altogether they cost 960 cents. How many 3-cent stamps are there?



There are 200 stamps which are 7-cent stamps and 8-cent stamps. Altogether they cost 1520 cents. How many 7-cent stamps are there?



There are 200 stamps which are 6-cent stamps and 3-cent stamps. Altogether they cost 960 cents. How many 6-cent stamps are there?



There are 180 stamps which are 7-cent stamps and 4-cent stamps. Altogether they cost 960 cents. How many 7-cent stamps are there?

There are 160 stamps which are 6-cent stamps and 5-cent stamps. Altogether they cost 880 cents. How many 6-cent stamps are there?



There are 220 stamps which are 7-cent stamps and 3-cent stamps. Altogether they cost 1020 cents. How many 7-cent stamps are there?



오늘 6원짜리 5원짜리 우표 총 220 장을 사고, 1230 원을 지불 했을때, 몇개의 6원짜리 우표를 샀는가?



There are 200 stamps which are 7-cent stamps and 5-cent stamps. Altogether they cost 1180 cents. How many 7-cent stamps are there?



There are 270 stamps which are 6-cent stamps and 9-cent stamps. Altogether they cost 1980 cents. How many 6-cent stamps are there?

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