205  Stamp
How many stamps? 2

Name : _________________

 

refresh

There are 120 stamps which are 8-cent stamps and 9-cent stamps. Altogether they cost 1010 cents. How many 8-cent stamps are there?



There are 220 stamps which are 6-cent stamps and 9-cent stamps. Altogether they cost 1560 cents. How many 6-cent stamps are there?



There are 140 stamps which are 5-cent stamps and 9-cent stamps. Altogether they cost 900 cents. How many 5-cent stamps are there?



There are 260 stamps which are 6-cent stamps and 7-cent stamps. Altogether they cost 1680 cents. How many 6-cent stamps are there?



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 180 stamps which are 8-cent stamps and 7-cent stamps. Altogether they cost 1380 cents. How many 8-cent stamps are there?



There are 220 stamps which are 5-cent stamps and 8-cent stamps. Altogether they cost 1430 cents. How many 5-cent stamps are there?



오늘 8원짜리 9원짜리 우표 총 270 장을 사고, 2290 원을 지불 했을때, 몇개의 8원짜리 우표를 샀는가?



There are 230 stamps which are 7-cent stamps and 6-cent stamps. Altogether they cost 1490 cents. How many 7-cent stamps are there?



There are 240 stamps which are 5-cent stamps and 4-cent stamps. Altogether they cost 1110 cents. How many 5-cent stamps are there?



+(         )

 

(         )+

++[[          ]]++

205    70 140 90 140 150 ( 590 )   120 110 140 110 150 ( 630 )   [[ 1220 ]]