589  Stamp
How many stamps? 2

Name : _________________

 

refresh

There are 190 stamps which are 7-cent stamps and 6-cent stamps. Altogether they cost 1250 cents. How many 7-cent stamps are there?



There are 240 stamps which are 3-cent stamps and 6-cent stamps. Altogether they cost 990 cents. How many 3-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?



There are 200 stamps which are 3-cent stamps and 8-cent stamps. Altogether they cost 1250 cents. How many 3-cent stamps are there?



There are 180 stamps which are 4-cent stamps and 3-cent stamps. Altogether they cost 620 cents. How many 4-cent stamps are there?



There are 150 stamps which are 7-cent stamps and 3-cent stamps. Altogether they cost 850 cents. How many 7-cent stamps are there?



There are 230 stamps which are 7-cent stamps and 6-cent stamps. Altogether they cost 1520 cents. How many 7-cent stamps are there?



오늘 7원짜리 6원짜리 우표 총 180 장을 사고, 1160 원을 지불 했을때, 몇개의 7원짜리 우표를 샀는가?



There are 200 stamps which are 5-cent stamps and 3-cent stamps. Altogether they cost 760 cents. How many 5-cent stamps are there?



There are 200 stamps which are 8-cent stamps and 3-cent stamps. Altogether they cost 1200 cents. How many 8-cent stamps are there?



+(         )

 

(         )+

++[[          ]]++

589    110 150 120 70 80 ( 530 )   100 140 80 80 120 ( 520 )   [[ 1050 ]]