392  Stamp
How many stamps? 2

Name : _________________

 

refresh

There are 210 stamps which are 4-cent stamps and 8-cent stamps. Altogether they cost 1320 cents. How many 4-cent stamps are there?



There are 180 stamps which are 5-cent stamps and 9-cent stamps. Altogether they cost 1180 cents. How many 5-cent stamps are there?



There are 190 stamps which are 3-cent stamps and 8-cent stamps. Altogether they cost 1120 cents. How many 3-cent stamps are there?



There are 160 stamps which are 3-cent stamps and 6-cent stamps. Altogether they cost 720 cents. How many 3-cent stamps are there?



There are 160 stamps which are 7-cent stamps and 6-cent stamps. Altogether they cost 1040 cents. How many 7-cent stamps are there?



There are 220 stamps which are 8-cent stamps and 3-cent stamps. Altogether they cost 1110 cents. How many 8-cent stamps are there?



There are 220 stamps which are 7-cent stamps and 5-cent stamps. Altogether they cost 1360 cents. How many 7-cent stamps are there?



¿À´Ã 8¿øÂ¥¸® 5¿øÂ¥¸® ¿ìÇ¥ ÃÑ 200 ÀåÀ» »ç°í, 1270 ¿øÀ» ÁöºÒ ÇßÀ»¶§, ¸î°³ÀÇ 8¿øÂ¥¸® ¿ìÇ¥¸¦ »ò´Â°¡?



There are 130 stamps which are 6-cent stamps and 5-cent stamps. Altogether they cost 720 cents. How many 6-cent stamps are there?



There are 230 stamps which are 5-cent stamps and 7-cent stamps. Altogether they cost 1350 cents. How many 5-cent stamps are there?



+(         )

 

(         )+

++[[          ]]++

392    90 110 80 80 80 ( 440 )   90 130 90 70 130 ( 510 )   [[ 950 ]]