508  Stamp
How many stamps? 2

Name : _________________

 

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There are 190 stamps which are 4-cent stamps and 6-cent stamps. Altogether they cost 940 cents. How many 4-cent stamps are there?



There are 160 stamps which are 7-cent stamps and 6-cent stamps. Altogether they cost 1040 cents. How many 7-cent stamps are there?



There are 260 stamps which are 7-cent stamps and 8-cent stamps. Altogether they cost 1950 cents. How many 7-cent stamps are there?



There are 180 stamps which are 6-cent stamps and 4-cent stamps. Altogether they cost 900 cents. How many 6-cent stamps are there?



There are 150 stamps which are 4-cent stamps and 3-cent stamps. Altogether they cost 550 cents. How many 4-cent stamps are there?



There are 250 stamps which are 6-cent stamps and 3-cent stamps. Altogether they cost 1110 cents. How many 6-cent stamps are there?



There are 220 stamps which are 6-cent stamps and 5-cent stamps. Altogether they cost 1250 cents. How many 6-cent stamps are there?



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There are 190 stamps which are 5-cent stamps and 7-cent stamps. Altogether they cost 1110 cents. How many 5-cent stamps are there?



There are 180 stamps which are 4-cent stamps and 9-cent stamps. Altogether they cost 970 cents. How many 4-cent stamps are there?



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508    100 80 130 90 100 ( 500 )   120 150 140 110 130 ( 650 )   [[ 1150 ]]