831  Stamp
How many stamps? 2

Name : _________________

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There are 220 stamps which are 3-cent stamps and 6-cent stamps. Altogether they cost 930 cents. How many 3-cent stamps are there?



There are 220 stamps which are 5-cent stamps and 7-cent stamps. Altogether they cost 1260 cents. How many 5-cent stamps are there?



There are 120 stamps which are 5-cent stamps and 6-cent stamps. Altogether they cost 650 cents. How many 5-cent stamps are there?



There are 190 stamps which are 6-cent stamps and 4-cent stamps. Altogether they cost 1000 cents. How many 6-cent stamps are there?



There are 140 stamps which are 7-cent stamps and 8-cent stamps. Altogether they cost 1040 cents. How many 7-cent stamps are there?

There are 240 stamps which are 6-cent stamps and 9-cent stamps. Altogether they cost 1740 cents. How many 6-cent stamps are there?



There are 150 stamps which are 4-cent stamps and 8-cent stamps. Altogether they cost 840 cents. How many 4-cent stamps are there?



오늘 3원짜리 6원짜리 우표 총 170 장을 사고, 750 원을 지불 했을때, 몇개의 3원짜리 우표를 샀는가?



There are 190 stamps which are 7-cent stamps and 4-cent stamps. Altogether they cost 970 cents. How many 7-cent stamps are there?



There are 150 stamps which are 7-cent stamps and 5-cent stamps. Altogether they cost 910 cents. How many 7-cent stamps are there?

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