698  Stamp
How many stamps? 2

Name : _________________

 

refresh

There are 170 stamps which are 7-cent stamps and 3-cent stamps. Altogether they cost 990 cents. How many 7-cent stamps are there?



There are 230 stamps which are 7-cent stamps and 6-cent stamps. Altogether they cost 1520 cents. How many 7-cent stamps are there?



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



There are 200 stamps which are 4-cent stamps and 5-cent stamps. Altogether they cost 910 cents. How many 4-cent stamps are there?



There are 170 stamps which are 5-cent stamps and 6-cent stamps. Altogether they cost 910 cents. How many 5-cent stamps are there?



There are 120 stamps which are 7-cent stamps and 9-cent stamps. Altogether they cost 940 cents. How many 7-cent stamps are there?



There are 180 stamps which are 7-cent stamps and 3-cent stamps. Altogether they cost 940 cents. How many 7-cent stamps are there?



¿À´Ã 3¿øÂ¥¸® 5¿øÂ¥¸® ¿ìÇ¥ ÃÑ 230 ÀåÀ» »ç°í, 930 ¿øÀ» ÁöºÒ ÇßÀ»¶§, ¸î°³ÀÇ 3¿øÂ¥¸® ¿ìÇ¥¸¦ »ò´Â°¡?



There are 200 stamps which are 4-cent stamps and 5-cent stamps. Altogether they cost 890 cents. How many 4-cent stamps are there?



There are 120 stamps which are 8-cent stamps and 5-cent stamps. Altogether they cost 810 cents. How many 8-cent stamps are there?



+(         )

 

(         )+

++[[          ]]++

698    120 140 100 90 110 ( 560 )   70 100 110 110 70 ( 460 )   [[ 1020 ]]