243  Stamp
How many stamps? 2

Name : _________________

 

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There are 140 stamps which are 5-cent stamps and 4-cent stamps. Altogether they cost 630 cents. How many 5-cent stamps are there?



There are 250 stamps which are 8-cent stamps and 9-cent stamps. Altogether they cost 2110 cents. How many 8-cent stamps are there?



There are 220 stamps which are 6-cent stamps and 4-cent stamps. Altogether they cost 1100 cents. How many 6-cent stamps are there?



There are 160 stamps which are 4-cent stamps and 9-cent stamps. Altogether they cost 940 cents. How many 4-cent stamps are there?



There are 160 stamps which are 8-cent stamps and 5-cent stamps. Altogether they cost 1040 cents. How many 8-cent stamps are there?



There are 250 stamps which are 6-cent stamps and 8-cent stamps. Altogether they cost 1760 cents. How many 6-cent stamps are there?



There are 140 stamps which are 6-cent stamps and 5-cent stamps. Altogether they cost 770 cents. How many 6-cent stamps are there?



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There are 210 stamps which are 5-cent stamps and 9-cent stamps. Altogether they cost 1290 cents. How many 5-cent stamps are there?



There are 210 stamps which are 4-cent stamps and 9-cent stamps. Altogether they cost 1390 cents. How many 4-cent stamps are there?



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243    70 140 110 100 80 ( 500 )   120 70 140 150 100 ( 580 )   [[ 1080 ]]