667  Stamp
How many stamps? 2

Name : _________________

 

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There are 160 stamps which are 3-cent stamps and 4-cent stamps. Altogether they cost 560 cents. How many 3-cent stamps are there?



There are 150 stamps which are 5-cent stamps and 8-cent stamps. Altogether they cost 900 cents. How many 5-cent stamps are there?



There are 250 stamps which are 4-cent stamps and 5-cent stamps. Altogether they cost 1110 cents. How many 4-cent stamps are there?



There are 150 stamps which are 8-cent stamps and 6-cent stamps. Altogether they cost 1100 cents. How many 8-cent stamps are there?



There are 220 stamps which are 4-cent stamps and 6-cent stamps. Altogether they cost 1100 cents. How many 4-cent stamps are there?



There are 190 stamps which are 3-cent stamps and 9-cent stamps. Altogether they cost 990 cents. How many 3-cent stamps are there?



There are 220 stamps which are 6-cent stamps and 5-cent stamps. Altogether they cost 1200 cents. How many 6-cent stamps are there?



오늘 7원짜리 4원짜리 우표 총 180 장을 사고, 990 원을 지불 했을때, 몇개의 7원짜리 우표를 샀는가?



There are 160 stamps which are 3-cent stamps and 7-cent stamps. Altogether they cost 680 cents. How many 3-cent stamps are there?



There are 240 stamps which are 8-cent stamps and 7-cent stamps. Altogether they cost 1830 cents. How many 8-cent stamps are there?



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667    80 100 140 100 110 ( 530 )   120 100 90 110 150 ( 570 )   [[ 1100 ]]