904  Stamp
How many stamps? 2

Name : _________________

 

refresh

There are 270 stamps which are 5-cent stamps and 3-cent stamps. Altogether they cost 1090 cents. How many 5-cent stamps are there?



There are 260 stamps which are 7-cent stamps and 3-cent stamps. Altogether they cost 1340 cents. How many 7-cent stamps are there?



There are 210 stamps which are 7-cent stamps and 8-cent stamps. Altogether they cost 1590 cents. How many 7-cent stamps are there?



There are 280 stamps which are 4-cent stamps and 5-cent stamps. Altogether they cost 1250 cents. How many 4-cent stamps are there?



There are 240 stamps which are 3-cent stamps and 4-cent stamps. Altogether they cost 830 cents. How many 3-cent stamps are there?



There are 220 stamps which are 8-cent stamps and 5-cent stamps. Altogether they cost 1490 cents. How many 8-cent stamps are there?



There are 230 stamps which are 6-cent stamps and 3-cent stamps. Altogether they cost 990 cents. How many 6-cent stamps are there?



오늘 8원짜리 5원짜리 우표 총 270 장을 사고, 1770 원을 지불 했을때, 몇개의 8원짜리 우표를 샀는가?



There are 240 stamps which are 8-cent stamps and 4-cent stamps. Altogether they cost 1400 cents. How many 8-cent stamps are there?



There are 150 stamps which are 8-cent stamps and 4-cent stamps. Altogether they cost 880 cents. How many 8-cent stamps are there?



+(         )

 

(         )+

++[[          ]]++

904    140 140 90 150 130 ( 650 )   130 100 140 110 70 ( 550 )   [[ 1200 ]]