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643 Stamp |
Name : _________________ |
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There are 220 stamps which are 6-cent stamps and 7-cent stamps. Altogether they cost 1430 cents. How many 6-cent stamps are there? |
There are 230 stamps which are 4-cent stamps and 8-cent stamps. Altogether they cost 1240 cents. How many 4-cent stamps are there? |
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| 643 110 90 150 100 140 ( 590 ) 150 70 70 140 150 ( 580 ) [[ 1170 ]] | ||
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