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813 Stamp |
Name : _________________ |
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There are 180 stamps which are 8-cent stamps and 6-cent stamps. Altogether they cost 1340 cents. How many 8-cent stamps are there? |
There are 190 stamps which are 6-cent stamps and 7-cent stamps. Altogether they cost 1190 cents. How many 6-cent stamps are there? |
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| 813 130 110 100 120 120 ( 580 ) 140 130 130 110 80 ( 590 ) [[ 1170 ]] | ||
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