412  Stamp
How many stamps? 2

Name : _________________

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There are 220 stamps which are 7-cent stamps and 9-cent stamps. Altogether they cost 1800 cents. How many 7-cent stamps are there?



There are 160 stamps which are 4-cent stamps and 8-cent stamps. Altogether they cost 960 cents. How many 4-cent stamps are there?



There are 200 stamps which are 6-cent stamps and 5-cent stamps. Altogether they cost 1070 cents. How many 6-cent stamps are there?



There are 150 stamps which are 6-cent stamps and 9-cent stamps. Altogether they cost 1080 cents. How many 6-cent stamps are there?



There are 250 stamps which are 5-cent stamps and 9-cent stamps. Altogether they cost 1730 cents. How many 5-cent stamps are there?

There are 150 stamps which are 8-cent stamps and 6-cent stamps. Altogether they cost 1060 cents. How many 8-cent stamps are there?



There are 160 stamps which are 3-cent stamps and 7-cent stamps. Altogether they cost 840 cents. How many 3-cent stamps are there?



오늘 5원짜리 4원짜리 우표 총 210 장을 사고, 920 원을 지불 했을때, 몇개의 5원짜리 우표를 샀는가?



There are 210 stamps which are 7-cent stamps and 8-cent stamps. Altogether they cost 1570 cents. How many 7-cent stamps are there?



There are 210 stamps which are 6-cent stamps and 9-cent stamps. Altogether they cost 1470 cents. How many 6-cent stamps are there?

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