192  Stamp
How many stamps? 2

Name : _________________

 

refresh

There are 160 stamps which are 6-cent stamps and 9-cent stamps. Altogether they cost 1230 cents. How many 6-cent stamps are there?



There are 210 stamps which are 4-cent stamps and 8-cent stamps. Altogether they cost 1200 cents. How many 4-cent stamps are there?



There are 170 stamps which are 4-cent stamps and 3-cent stamps. Altogether they cost 590 cents. How many 4-cent stamps are there?



There are 230 stamps which are 5-cent stamps and 4-cent stamps. Altogether they cost 1040 cents. How many 5-cent stamps are there?



There are 170 stamps which are 7-cent stamps and 4-cent stamps. Altogether they cost 920 cents. How many 7-cent stamps are there?



There are 190 stamps which are 5-cent stamps and 9-cent stamps. Altogether they cost 1150 cents. How many 5-cent stamps are there?



There are 240 stamps which are 7-cent stamps and 5-cent stamps. Altogether they cost 1480 cents. How many 7-cent stamps are there?



¿À´Ã 3¿øÂ¥¸® 5¿øÂ¥¸® ¿ìÇ¥ ÃÑ 150 ÀåÀ» »ç°í, 610 ¿øÀ» ÁöºÒ ÇßÀ»¶§, ¸î°³ÀÇ 3¿øÂ¥¸® ¿ìÇ¥¸¦ »ò´Â°¡?



There are 140 stamps which are 3-cent stamps and 4-cent stamps. Altogether they cost 480 cents. How many 3-cent stamps are there?



There are 270 stamps which are 4-cent stamps and 6-cent stamps. Altogether they cost 1320 cents. How many 4-cent stamps are there?



+(         )

 

(         )+

++[[          ]]++

192    70 120 80 120 80 ( 470 )   140 140 70 80 150 ( 580 )   [[ 1050 ]]