478  Stamp
How many stamps? 2

Name : _________________

 

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There are 200 stamps which are 8-cent stamps and 5-cent stamps. Altogether they cost 1300 cents. How many 8-cent stamps are there?



There are 130 stamps which are 5-cent stamps and 7-cent stamps. Altogether they cost 750 cents. How many 5-cent stamps are there?



There are 220 stamps which are 4-cent stamps and 3-cent stamps. Altogether they cost 790 cents. How many 4-cent stamps are there?



There are 190 stamps which are 4-cent stamps and 5-cent stamps. Altogether they cost 820 cents. How many 4-cent stamps are there?



There are 210 stamps which are 8-cent stamps and 9-cent stamps. Altogether they cost 1760 cents. How many 8-cent stamps are there?



There are 200 stamps which are 8-cent stamps and 9-cent stamps. Altogether they cost 1660 cents. How many 8-cent stamps are there?



There are 200 stamps which are 6-cent stamps and 7-cent stamps. Altogether they cost 1300 cents. How many 6-cent stamps are there?



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There are 230 stamps which are 8-cent stamps and 3-cent stamps. Altogether they cost 1390 cents. How many 8-cent stamps are there?



There are 250 stamps which are 5-cent stamps and 6-cent stamps. Altogether they cost 1380 cents. How many 5-cent stamps are there?



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478    100 80 130 130 130 ( 570 )   140 100 140 140 120 ( 640 )   [[ 1210 ]]