478  Stamp
How many stamps? 2

Name : _________________

 

refresh

There are 230 stamps which are 3-cent stamps and 6-cent stamps. Altogether they cost 1080 cents. How many 3-cent stamps are there?



There are 200 stamps which are 8-cent stamps and 4-cent stamps. Altogether they cost 1280 cents. How many 8-cent stamps are there?



There are 210 stamps which are 6-cent stamps and 3-cent stamps. Altogether they cost 900 cents. How many 6-cent stamps are there?



There are 170 stamps which are 8-cent stamps and 6-cent stamps. Altogether they cost 1180 cents. How many 8-cent stamps are there?



There are 240 stamps which are 8-cent stamps and 7-cent stamps. Altogether they cost 1810 cents. How many 8-cent stamps are there?



There are 180 stamps which are 5-cent stamps and 6-cent stamps. Altogether they cost 990 cents. How many 5-cent stamps are there?



There are 150 stamps which are 6-cent stamps and 5-cent stamps. Altogether they cost 850 cents. How many 6-cent stamps are there?



오늘 8원짜리 5원짜리 우표 총 190 장을 사고, 1250 원을 지불 했을때, 몇개의 8원짜리 우표를 샀는가?



There are 230 stamps which are 3-cent stamps and 4-cent stamps. Altogether they cost 770 cents. How many 3-cent stamps are there?



There are 240 stamps which are 8-cent stamps and 4-cent stamps. Altogether they cost 1480 cents. How many 8-cent stamps are there?



+(         )

 

(         )+

++[[          ]]++

478    100 120 90 80 130 ( 520 )   90 100 100 150 130 ( 570 )   [[ 1090 ]]