666  Stamp
How many stamps? 2

Name : _________________

 

refresh

There are 170 stamps which are 6-cent stamps and 8-cent stamps. Altogether they cost 1140 cents. How many 6-cent stamps are there?



There are 120 stamps which are 5-cent stamps and 9-cent stamps. Altogether they cost 800 cents. How many 5-cent stamps are there?



There are 160 stamps which are 6-cent stamps and 3-cent stamps. Altogether they cost 810 cents. How many 6-cent stamps are there?



There are 250 stamps which are 4-cent stamps and 3-cent stamps. Altogether they cost 900 cents. How many 4-cent stamps are there?



There are 160 stamps which are 6-cent stamps and 9-cent stamps. Altogether they cost 1200 cents. How many 6-cent stamps are there?



There are 220 stamps which are 3-cent stamps and 4-cent stamps. Altogether they cost 770 cents. How many 3-cent stamps are there?



There are 230 stamps which are 8-cent stamps and 3-cent stamps. Altogether they cost 1340 cents. How many 8-cent stamps are there?



¿À´Ã 7¿øÂ¥¸® 3¿øÂ¥¸® ¿ìÇ¥ ÃÑ 250 ÀåÀ» »ç°í, 1230 ¿øÀ» ÁöºÒ ÇßÀ»¶§, ¸î°³ÀÇ 7¿øÂ¥¸® ¿ìÇ¥¸¦ »ò´Â°¡?



There are 170 stamps which are 5-cent stamps and 8-cent stamps. Altogether they cost 1090 cents. How many 5-cent stamps are there?



There are 260 stamps which are 3-cent stamps and 5-cent stamps. Altogether they cost 1040 cents. How many 3-cent stamps are there?



+(         )

 

(         )+

++[[          ]]++

666    110 70 110 150 80 ( 520 )   110 130 120 90 130 ( 580 )   [[ 1100 ]]