200  Stamp
How many stamps? 2

Name : _________________

 

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There are 170 stamps which are 7-cent stamps and 6-cent stamps. Altogether they cost 1090 cents. How many 7-cent stamps are there?



There are 140 stamps which are 7-cent stamps and 9-cent stamps. Altogether they cost 1080 cents. How many 7-cent stamps are there?



There are 240 stamps which are 5-cent stamps and 7-cent stamps. Altogether they cost 1380 cents. How many 5-cent stamps are there?



There are 160 stamps which are 3-cent stamps and 5-cent stamps. Altogether they cost 600 cents. How many 3-cent stamps are there?



There are 220 stamps which are 4-cent stamps and 3-cent stamps. Altogether they cost 800 cents. How many 4-cent stamps are there?



There are 210 stamps which are 8-cent stamps and 7-cent stamps. Altogether they cost 1620 cents. How many 8-cent stamps are there?



There are 220 stamps which are 8-cent stamps and 7-cent stamps. Altogether they cost 1660 cents. How many 8-cent stamps are there?



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There are 260 stamps which are 8-cent stamps and 3-cent stamps. Altogether they cost 1480 cents. How many 8-cent stamps are there?



There are 140 stamps which are 5-cent stamps and 6-cent stamps. Altogether they cost 760 cents. How many 5-cent stamps are there?



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200    70 90 150 100 140 ( 550 )   150 120 150 140 80 ( 640 )   [[ 1190 ]]