391  Stamp
How many stamps? 2

Name : _________________

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There are 200 stamps which are 3-cent stamps and 5-cent stamps. Altogether they cost 820 cents. How many 3-cent stamps are there?



There are 230 stamps which are 7-cent stamps and 5-cent stamps. Altogether they cost 1370 cents. How many 7-cent stamps are there?



There are 190 stamps which are 8-cent stamps and 7-cent stamps. Altogether they cost 1450 cents. How many 8-cent stamps are there?



There are 190 stamps which are 8-cent stamps and 9-cent stamps. Altogether they cost 1640 cents. How many 8-cent stamps are there?



There are 170 stamps which are 8-cent stamps and 9-cent stamps. Altogether they cost 1410 cents. How many 8-cent stamps are there?

There are 240 stamps which are 7-cent stamps and 4-cent stamps. Altogether they cost 1320 cents. How many 7-cent stamps are there?



There are 210 stamps which are 7-cent stamps and 6-cent stamps. Altogether they cost 1390 cents. How many 7-cent stamps are there?



오늘 6원짜리 7원짜리 우표 총 210 장을 사고, 1390 원을 지불 했을때, 몇개의 6원짜리 우표를 샀는가?



There are 240 stamps which are 5-cent stamps and 9-cent stamps. Altogether they cost 1680 cents. How many 5-cent stamps are there?



There are 180 stamps which are 5-cent stamps and 6-cent stamps. Altogether they cost 960 cents. How many 5-cent stamps are there?

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