791  Stamp
How many stamps? 2

Name : _________________

 

refresh

There are 210 stamps which are 3-cent stamps and 9-cent stamps. Altogether they cost 1110 cents. How many 3-cent stamps are there?



There are 160 stamps which are 8-cent stamps and 3-cent stamps. Altogether they cost 930 cents. How many 8-cent stamps are there?



There are 210 stamps which are 4-cent stamps and 5-cent stamps. Altogether they cost 910 cents. How many 4-cent stamps are there?



There are 190 stamps which are 3-cent stamps and 4-cent stamps. Altogether they cost 670 cents. How many 3-cent stamps are there?



There are 200 stamps which are 7-cent stamps and 5-cent stamps. Altogether they cost 1260 cents. How many 7-cent stamps are there?



There are 170 stamps which are 5-cent stamps and 7-cent stamps. Altogether they cost 950 cents. How many 5-cent stamps are there?



There are 160 stamps which are 6-cent stamps and 4-cent stamps. Altogether they cost 840 cents. How many 6-cent stamps are there?



오늘 4원짜리 7원짜리 우표 총 230 장을 사고, 1250 원을 지불 했을때, 몇개의 4원짜리 우표를 샀는가?



There are 180 stamps which are 5-cent stamps and 4-cent stamps. Altogether they cost 790 cents. How many 5-cent stamps are there?



There are 250 stamps which are 7-cent stamps and 8-cent stamps. Altogether they cost 1870 cents. How many 7-cent stamps are there?



+(         )

 

(         )+

++[[          ]]++

791    130 90 140 90 130 ( 580 )   120 100 120 70 130 ( 540 )   [[ 1120 ]]