857  Stamp
How many stamps? 2

Name : _________________

 

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There are 130 stamps which are 4-cent stamps and 6-cent stamps. Altogether they cost 640 cents. How many 4-cent stamps are there?



There are 200 stamps which are 5-cent stamps and 6-cent stamps. Altogether they cost 1120 cents. How many 5-cent stamps are there?



There are 160 stamps which are 6-cent stamps and 5-cent stamps. Altogether they cost 870 cents. How many 6-cent stamps are there?



There are 250 stamps which are 5-cent stamps and 8-cent stamps. Altogether they cost 1550 cents. How many 5-cent stamps are there?



There are 210 stamps which are 4-cent stamps and 5-cent stamps. Altogether they cost 960 cents. How many 4-cent stamps are there?



There are 140 stamps which are 7-cent stamps and 5-cent stamps. Altogether they cost 840 cents. How many 7-cent stamps are there?



There are 240 stamps which are 6-cent stamps and 7-cent stamps. Altogether they cost 1550 cents. How many 6-cent stamps are there?



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There are 230 stamps which are 4-cent stamps and 5-cent stamps. Altogether they cost 1050 cents. How many 4-cent stamps are there?



There are 130 stamps which are 7-cent stamps and 8-cent stamps. Altogether they cost 970 cents. How many 7-cent stamps are there?



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857    70 80 70 150 90 ( 460 )   70 130 80 100 70 ( 450 )   [[ 910 ]]