428  Stamp
How many stamps? 2

Name : _________________

 

refresh

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 180 stamps which are 5-cent stamps and 6-cent stamps. Altogether they cost 1000 cents. How many 5-cent stamps are there?



There are 140 stamps which are 6-cent stamps and 9-cent stamps. Altogether they cost 1020 cents. How many 6-cent stamps are there?



There are 200 stamps which are 6-cent stamps and 3-cent stamps. Altogether they cost 990 cents. How many 6-cent stamps are there?



There are 220 stamps which are 4-cent stamps and 5-cent stamps. Altogether they cost 1000 cents. How many 4-cent stamps are there?



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 120 stamps which are 6-cent stamps and 4-cent stamps. Altogether they cost 620 cents. How many 6-cent stamps are there?



¿À´Ã 8¿øÂ¥¸® 3¿øÂ¥¸® ¿ìÇ¥ ÃÑ 200 ÀåÀ» »ç°í, 950 ¿øÀ» ÁöºÒ ÇßÀ»¶§, ¸î°³ÀÇ 8¿øÂ¥¸® ¿ìÇ¥¸¦ »ò´Â°¡?



There are 170 stamps which are 8-cent stamps and 4-cent stamps. Altogether they cost 1000 cents. How many 8-cent stamps are there?



There are 190 stamps which are 3-cent stamps and 4-cent stamps. Altogether they cost 660 cents. How many 3-cent stamps are there?



+(         )

 

(         )+

++[[          ]]++

428    80 80 80 130 100 ( 470 )   90 70 70 80 100 ( 410 )   [[ 880 ]]