599  Stamp
How many stamps? 2

Name : _________________

 

refresh

There are 170 stamps which are 6-cent stamps and 7-cent stamps. Altogether they cost 1080 cents. How many 6-cent stamps are there?



There are 230 stamps which are 6-cent stamps and 3-cent stamps. Altogether they cost 1080 cents. How many 6-cent stamps are there?



There are 190 stamps which are 6-cent stamps and 4-cent stamps. Altogether they cost 1040 cents. How many 6-cent stamps are there?



There are 200 stamps which are 6-cent stamps and 4-cent stamps. Altogether they cost 1000 cents. How many 6-cent stamps are there?



There are 230 stamps which are 4-cent stamps and 3-cent stamps. Altogether they cost 790 cents. How many 4-cent stamps are there?



There are 260 stamps which are 5-cent stamps and 8-cent stamps. Altogether they cost 1630 cents. How many 5-cent stamps are there?



There are 170 stamps which are 3-cent stamps and 5-cent stamps. Altogether they cost 630 cents. How many 3-cent stamps are there?



오늘 5원짜리 6원짜리 우표 총 220 장을 사고, 1210 원을 지불 했을때, 몇개의 5원짜리 우표를 샀는가?



There are 160 stamps which are 8-cent stamps and 9-cent stamps. Altogether they cost 1330 cents. How many 8-cent stamps are there?



There are 170 stamps which are 7-cent stamps and 5-cent stamps. Altogether they cost 1030 cents. How many 7-cent stamps are there?



+(         )

 

(         )+

++[[          ]]++

599    110 130 140 100 100 ( 580 )   150 110 110 110 90 ( 570 )   [[ 1150 ]]