857  Stamp
How many stamps? 2

Name : _________________

 

refresh

There are 230 stamps which are 8-cent stamps and 3-cent stamps. Altogether they cost 1340 cents. How many 8-cent stamps are there?



There are 130 stamps which are 7-cent stamps and 9-cent stamps. Altogether they cost 1030 cents. How many 7-cent stamps are there?



There are 180 stamps which are 3-cent stamps and 4-cent stamps. Altogether they cost 640 cents. How many 3-cent stamps are there?



There are 130 stamps which are 3-cent stamps and 4-cent stamps. Altogether they cost 450 cents. How many 3-cent stamps are there?



There are 190 stamps which are 7-cent stamps and 5-cent stamps. Altogether they cost 1150 cents. How many 7-cent stamps are there?



There are 200 stamps which are 8-cent stamps and 9-cent stamps. Altogether they cost 1710 cents. How many 8-cent stamps are there?



There are 160 stamps which are 3-cent stamps and 5-cent stamps. Altogether they cost 620 cents. How many 3-cent stamps are there?



오늘 5원짜리 9원짜리 우표 총 220 장을 사고, 1460 원을 지불 했을때, 몇개의 5원짜리 우표를 샀는가?



There are 250 stamps which are 8-cent stamps and 4-cent stamps. Altogether they cost 1480 cents. How many 8-cent stamps are there?



There are 210 stamps which are 8-cent stamps and 5-cent stamps. Altogether they cost 1410 cents. How many 8-cent stamps are there?



+(         )

 

(         )+

++[[          ]]++

857    130 70 80 70 100 ( 450 )   90 90 130 120 120 ( 550 )   [[ 1000 ]]