771  Stamp
How many stamps? 2

Name : _________________

 

refresh

There are 170 stamps which are 6-cent stamps and 8-cent stamps. Altogether they cost 1120 cents. How many 6-cent stamps are there?



There are 240 stamps which are 6-cent stamps and 4-cent stamps. Altogether they cost 1260 cents. How many 6-cent stamps are there?



There are 250 stamps which are 3-cent stamps and 4-cent stamps. Altogether they cost 880 cents. How many 3-cent stamps are there?



There are 200 stamps which are 5-cent stamps and 7-cent stamps. Altogether they cost 1180 cents. How many 5-cent stamps are there?



There are 240 stamps which are 8-cent stamps and 5-cent stamps. Altogether they cost 1530 cents. How many 8-cent stamps are there?



There are 180 stamps which are 3-cent stamps and 6-cent stamps. Altogether they cost 690 cents. How many 3-cent stamps are there?



There are 180 stamps which are 8-cent stamps and 6-cent stamps. Altogether they cost 1240 cents. How many 8-cent stamps are there?



오늘 3원짜리 6원짜리 우표 총 260 장을 사고, 1170 원을 지불 했을때, 몇개의 3원짜리 우표를 샀는가?



There are 180 stamps which are 6-cent stamps and 7-cent stamps. Altogether they cost 1150 cents. How many 6-cent stamps are there?



There are 230 stamps which are 8-cent stamps and 3-cent stamps. Altogether they cost 1290 cents. How many 8-cent stamps are there?



+(         )

 

(         )+

++[[          ]]++

771    120 150 120 110 110 ( 610 )   130 80 130 110 120 ( 570 )   [[ 1180 ]]