322  Stamp
How many stamps? 2

Name : _________________

 

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There are 130 stamps which are 6-cent stamps and 4-cent stamps. Altogether they cost 680 cents. How many 6-cent stamps are there?



There are 200 stamps which are 6-cent stamps and 4-cent stamps. Altogether they cost 1020 cents. How many 6-cent stamps are there?



There are 200 stamps which are 7-cent stamps and 8-cent stamps. Altogether they cost 1520 cents. How many 7-cent stamps are there?



There are 190 stamps which are 3-cent stamps and 7-cent stamps. Altogether they cost 1050 cents. How many 3-cent stamps are there?



There are 220 stamps which are 5-cent stamps and 9-cent stamps. Altogether they cost 1500 cents. How many 5-cent stamps are there?



There are 150 stamps which are 4-cent stamps and 6-cent stamps. Altogether they cost 720 cents. How many 4-cent stamps are there?



There are 220 stamps which are 4-cent stamps and 7-cent stamps. Altogether they cost 1180 cents. How many 4-cent stamps are there?



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There are 200 stamps which are 7-cent stamps and 9-cent stamps. Altogether they cost 1560 cents. How many 7-cent stamps are there?



There are 150 stamps which are 8-cent stamps and 4-cent stamps. Altogether they cost 960 cents. How many 8-cent stamps are there?



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322    80 110 80 70 120 ( 460 )   90 120 80 120 90 ( 500 )   [[ 960 ]]