666  Stamp
How many stamps? 2

Name : _________________

 

refresh

There are 200 stamps which are 5-cent stamps and 9-cent stamps. Altogether they cost 1360 cents. How many 5-cent stamps are there?



There are 230 stamps which are 8-cent stamps and 3-cent stamps. Altogether they cost 1190 cents. How many 8-cent stamps are there?



There are 260 stamps which are 8-cent stamps and 7-cent stamps. Altogether they cost 1950 cents. How many 8-cent stamps are there?



There are 230 stamps which are 5-cent stamps and 3-cent stamps. Altogether they cost 890 cents. How many 5-cent stamps are there?



There are 250 stamps which are 8-cent stamps and 3-cent stamps. Altogether they cost 1400 cents. How many 8-cent stamps are there?



There are 210 stamps which are 7-cent stamps and 8-cent stamps. Altogether they cost 1580 cents. How many 7-cent stamps are there?



There are 240 stamps which are 3-cent stamps and 6-cent stamps. Altogether they cost 1020 cents. How many 3-cent stamps are there?



오늘 3원짜리 5원짜리 우표 총 200 장을 사고, 760 원을 지불 했을때, 몇개의 3원짜리 우표를 샀는가?



There are 220 stamps which are 7-cent stamps and 4-cent stamps. Altogether they cost 1180 cents. How many 7-cent stamps are there?



There are 140 stamps which are 5-cent stamps and 9-cent stamps. Altogether they cost 980 cents. How many 5-cent stamps are there?



+(         )

 

(         )+

++[[          ]]++

666    110 100 130 100 130 ( 570 )   100 140 120 100 70 ( 530 )   [[ 1100 ]]