990  Stamp
How many stamps? 2

Name : _________________

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There are 240 stamps which are 6-cent stamps and 7-cent stamps. Altogether they cost 1530 cents. How many 6-cent stamps are there?



There are 190 stamps which are 8-cent stamps and 4-cent stamps. Altogether they cost 1240 cents. How many 8-cent stamps are there?



There are 240 stamps which are 4-cent stamps and 6-cent stamps. Altogether they cost 1180 cents. How many 4-cent stamps are there?



There are 160 stamps which are 8-cent stamps and 5-cent stamps. Altogether they cost 1040 cents. How many 8-cent stamps are there?



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

There are 210 stamps which are 8-cent stamps and 4-cent stamps. Altogether they cost 1360 cents. How many 8-cent stamps are there?



There are 230 stamps which are 3-cent stamps and 9-cent stamps. Altogether they cost 1170 cents. How many 3-cent stamps are there?



오늘 8원짜리 9원짜리 우표 총 250 장을 사고, 2110 원을 지불 했을때, 몇개의 8원짜리 우표를 샀는가?



There are 180 stamps which are 5-cent stamps and 3-cent stamps. Altogether they cost 780 cents. How many 5-cent stamps are there?



There are 220 stamps which are 3-cent stamps and 4-cent stamps. Altogether they cost 750 cents. How many 3-cent stamps are there?

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