299  Stamp
How many stamps? 2

Name : _________________

 

refresh

There are 150 stamps which are 6-cent stamps and 5-cent stamps. Altogether they cost 830 cents. How many 6-cent stamps are there?



There are 140 stamps which are 8-cent stamps and 6-cent stamps. Altogether they cost 1000 cents. How many 8-cent stamps are there?



There are 180 stamps which are 7-cent stamps and 4-cent stamps. Altogether they cost 1080 cents. How many 7-cent stamps are there?



There are 270 stamps which are 5-cent stamps and 4-cent stamps. Altogether they cost 1230 cents. How many 5-cent stamps are there?



There are 190 stamps which are 7-cent stamps and 3-cent stamps. Altogether they cost 930 cents. How many 7-cent stamps are there?



There are 170 stamps which are 6-cent stamps and 5-cent stamps. Altogether they cost 940 cents. How many 6-cent stamps are there?



There are 270 stamps which are 4-cent stamps and 3-cent stamps. Altogether they cost 960 cents. How many 4-cent stamps are there?



오늘 6원짜리 5원짜리 우표 총 240 장을 사고, 1350 원을 지불 했을때, 몇개의 6원짜리 우표를 샀는가?



There are 150 stamps which are 8-cent stamps and 5-cent stamps. Altogether they cost 990 cents. How many 8-cent stamps are there?



There are 130 stamps which are 6-cent stamps and 8-cent stamps. Altogether they cost 880 cents. How many 6-cent stamps are there?



+(         )

 

(         )+

++[[          ]]++

299    80 80 120 150 90 ( 520 )   90 150 150 80 80 ( 550 )   [[ 1070 ]]