878  Stamp
How many stamps? 2

Name : _________________

 

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There are 210 stamps which are 7-cent stamps and 4-cent stamps. Altogether they cost 1260 cents. How many 7-cent stamps are there?



There are 180 stamps which are 7-cent stamps and 6-cent stamps. Altogether they cost 1150 cents. How many 7-cent stamps are there?



There are 200 stamps which are 5-cent stamps and 4-cent stamps. Altogether they cost 930 cents. How many 5-cent stamps are there?



There are 200 stamps which are 4-cent stamps and 7-cent stamps. Altogether they cost 1160 cents. How many 4-cent stamps are there?



There are 170 stamps which are 4-cent stamps and 7-cent stamps. Altogether they cost 830 cents. How many 4-cent stamps are there?



There are 200 stamps which are 6-cent stamps and 9-cent stamps. Altogether they cost 1560 cents. How many 6-cent stamps are there?



There are 220 stamps which are 5-cent stamps and 6-cent stamps. Altogether they cost 1180 cents. How many 5-cent stamps are there?



¿À´Ã 8¿øÂ¥¸® 6¿øÂ¥¸® ¿ìÇ¥ ÃÑ 220 ÀåÀ» »ç°í, 1500 ¿øÀ» ÁöºÒ ÇßÀ»¶§, ¸î°³ÀÇ 8¿øÂ¥¸® ¿ìÇ¥¸¦ »ò´Â°¡?



There are 200 stamps which are 3-cent stamps and 6-cent stamps. Altogether they cost 810 cents. How many 3-cent stamps are there?



There are 230 stamps which are 4-cent stamps and 8-cent stamps. Altogether they cost 1400 cents. How many 4-cent stamps are there?



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878    140 70 130 80 120 ( 540 )   80 140 90 130 110 ( 550 )   [[ 1090 ]]