423  Stamp
How many stamps? 2

Name : _________________

 

refresh

There are 200 stamps which are 5-cent stamps and 7-cent stamps. Altogether they cost 1220 cents. How many 5-cent stamps are there?



There are 130 stamps which are 8-cent stamps and 9-cent stamps. Altogether they cost 1100 cents. How many 8-cent stamps are there?



There are 230 stamps which are 7-cent stamps and 4-cent stamps. Altogether they cost 1310 cents. How many 7-cent stamps are there?



There are 150 stamps which are 5-cent stamps and 9-cent stamps. Altogether they cost 1030 cents. How many 5-cent stamps are there?



There are 200 stamps which are 7-cent stamps and 8-cent stamps. Altogether they cost 1520 cents. How many 7-cent stamps are there?



There are 220 stamps which are 3-cent stamps and 9-cent stamps. Altogether they cost 1380 cents. How many 3-cent stamps are there?



There are 220 stamps which are 8-cent stamps and 5-cent stamps. Altogether they cost 1520 cents. How many 8-cent stamps are there?



오늘 8원짜리 5원짜리 우표 총 190 장을 사고, 1220 원을 지불 했을때, 몇개의 8원짜리 우표를 샀는가?



There are 170 stamps which are 3-cent stamps and 4-cent stamps. Altogether they cost 560 cents. How many 3-cent stamps are there?



There are 220 stamps which are 4-cent stamps and 9-cent stamps. Altogether they cost 1330 cents. How many 4-cent stamps are there?



+(         )

 

(         )+

++[[          ]]++

423    90 70 130 80 80 ( 450 )   100 140 90 120 130 ( 580 )   [[ 1030 ]]