383  Stamp
How many stamps? 2

Name : _________________

 

refresh

There are 250 stamps which are 5-cent stamps and 3-cent stamps. Altogether they cost 1050 cents. How many 5-cent stamps are there?



There are 230 stamps which are 7-cent stamps and 4-cent stamps. Altogether they cost 1370 cents. How many 7-cent stamps are there?



There are 270 stamps which are 8-cent stamps and 7-cent stamps. Altogether they cost 2030 cents. How many 8-cent stamps are there?



There are 160 stamps which are 3-cent stamps and 7-cent stamps. Altogether they cost 720 cents. How many 3-cent stamps are there?



There are 170 stamps which are 3-cent stamps and 9-cent stamps. Altogether they cost 1050 cents. How many 3-cent stamps are there?



There are 160 stamps which are 6-cent stamps and 7-cent stamps. Altogether they cost 1050 cents. How many 6-cent stamps are there?



There are 210 stamps which are 4-cent stamps and 5-cent stamps. Altogether they cost 970 cents. How many 4-cent stamps are there?



오늘 4원짜리 8원짜리 우표 총 250 장을 사고, 1440 원을 지불 했을때, 몇개의 4원짜리 우표를 샀는가?



There are 170 stamps which are 5-cent stamps and 8-cent stamps. Altogether they cost 1090 cents. How many 5-cent stamps are there?



There are 170 stamps which are 7-cent stamps and 3-cent stamps. Altogether they cost 790 cents. How many 7-cent stamps are there?



+(         )

 

(         )+

++[[          ]]++

383    150 150 140 100 80 ( 620 )   70 80 140 90 70 ( 450 )   [[ 1070 ]]