400  Stamp
How many stamps? 2

Name : _________________

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There are 170 stamps which are 3-cent stamps and 5-cent stamps. Altogether they cost 670 cents. How many 3-cent stamps are there?



There are 280 stamps which are 7-cent stamps and 5-cent stamps. Altogether they cost 1700 cents. How many 7-cent stamps are there?



There are 180 stamps which are 3-cent stamps and 4-cent stamps. Altogether they cost 600 cents. How many 3-cent stamps are there?



There are 200 stamps which are 7-cent stamps and 6-cent stamps. Altogether they cost 1320 cents. How many 7-cent stamps are there?



There are 140 stamps which are 3-cent stamps and 6-cent stamps. Altogether they cost 600 cents. How many 3-cent stamps are there?

There are 240 stamps which are 8-cent stamps and 7-cent stamps. Altogether they cost 1820 cents. How many 8-cent stamps are there?



There are 200 stamps which are 3-cent stamps and 7-cent stamps. Altogether they cost 880 cents. How many 3-cent stamps are there?



오늘 3원짜리 7원짜리 우표 총 180 장을 사고, 900 원을 지불 했을때, 몇개의 3원짜리 우표를 샀는가?



There are 240 stamps which are 4-cent stamps and 7-cent stamps. Altogether they cost 1350 cents. How many 4-cent stamps are there?



There are 240 stamps which are 4-cent stamps and 9-cent stamps. Altogether they cost 1410 cents. How many 4-cent stamps are there?

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