196  Stamp
How many stamps? 2

Name : _________________

 

refresh

There are 120 stamps which are 3-cent stamps and 9-cent stamps. Altogether they cost 660 cents. How many 3-cent stamps are there?



There are 220 stamps which are 7-cent stamps and 9-cent stamps. Altogether they cost 1700 cents. How many 7-cent stamps are there?



There are 200 stamps which are 7-cent stamps and 6-cent stamps. Altogether they cost 1350 cents. How many 7-cent stamps are there?



There are 190 stamps which are 6-cent stamps and 5-cent stamps. Altogether they cost 1050 cents. How many 6-cent stamps are there?



There are 220 stamps which are 4-cent stamps and 6-cent stamps. Altogether they cost 1120 cents. How many 4-cent stamps are there?



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 180 stamps which are 4-cent stamps and 7-cent stamps. Altogether they cost 900 cents. How many 4-cent stamps are there?



오늘 6원짜리 8원짜리 우표 총 210 장을 사고, 1460 원을 지불 했을때, 몇개의 6원짜리 우표를 샀는가?



There are 240 stamps which are 8-cent stamps and 5-cent stamps. Altogether they cost 1530 cents. How many 8-cent stamps are there?



There are 220 stamps which are 4-cent stamps and 3-cent stamps. Altogether they cost 800 cents. How many 4-cent stamps are there?



+(         )

 

(         )+

++[[          ]]++

196    70 140 150 100 100 ( 560 )   150 120 110 110 140 ( 630 )   [[ 1190 ]]