418  Stamp
How many stamps? 1

Name : _________________

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There are 170 stamps which are 3-cent stamps and 9-cent stamps. Altogether they cost 990 cents. How many 3-cent stamps are there?



There are 210 stamps which are 7-cent stamps and 3-cent stamps. Altogether they cost 1190 cents. How many 7-cent stamps are there?



There are 270 stamps which are 8-cent stamps and 5-cent stamps. Altogether they cost 1800 cents. How many 8-cent stamps are there?



There are 220 stamps which are 3-cent stamps and 7-cent stamps. Altogether they cost 980 cents. How many 3-cent stamps are there?



There are 180 stamps which are 6-cent stamps and 3-cent stamps. Altogether they cost 870 cents. How many 6-cent stamps are there?

There are 220 stamps which are 3-cent stamps and 7-cent stamps. Altogether they cost 980 cents. How many 3-cent stamps are there?



There are 140 stamps which are 7-cent stamps and 3-cent stamps. Altogether they cost 780 cents. How many 7-cent stamps are there?



There are 210 stamps which are 3-cent stamps and 7-cent stamps. Altogether they cost 910 cents. How many 3-cent stamps are there?



There are 200 stamps which are 4-cent stamps and 9-cent stamps. Altogether they cost 1100 cents. How many 4-cent stamps are there?



There are 140 stamps which are 4-cent stamps and 7-cent stamps. Altogether they cost 740 cents. How many 4-cent stamps are there?

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