458  Stamp
How many stamps? 2

Name : _________________

 

refresh

There are 210 stamps which are 6-cent stamps and 7-cent stamps. Altogether they cost 1380 cents. How many 6-cent stamps are there?



There are 250 stamps which are 6-cent stamps and 7-cent stamps. Altogether they cost 1610 cents. How many 6-cent stamps are there?



There are 210 stamps which are 7-cent stamps and 5-cent stamps. Altogether they cost 1350 cents. How many 7-cent stamps are there?



There are 220 stamps which are 5-cent stamps and 8-cent stamps. Altogether they cost 1460 cents. How many 5-cent stamps are there?



There are 240 stamps which are 8-cent stamps and 7-cent stamps. Altogether they cost 1790 cents. How many 8-cent stamps are there?



There are 220 stamps which are 5-cent stamps and 7-cent stamps. Altogether they cost 1340 cents. How many 5-cent stamps are there?



There are 180 stamps which are 6-cent stamps and 3-cent stamps. Altogether they cost 840 cents. How many 6-cent stamps are there?



오늘 7원짜리 4원짜리 우표 총 250 장을 사고, 1420 원을 지불 했을때, 몇개의 7원짜리 우표를 샀는가?



There are 250 stamps which are 4-cent stamps and 9-cent stamps. Altogether they cost 1500 cents. How many 4-cent stamps are there?



There are 120 stamps which are 5-cent stamps and 6-cent stamps. Altogether they cost 650 cents. How many 5-cent stamps are there?



+(         )

 

(         )+

++[[          ]]++

458    90 140 150 100 110 ( 590 )   100 100 140 150 70 ( 560 )   [[ 1150 ]]