877  Stamp
How many stamps? 2

Name : _________________

 

refresh

There are 260 stamps which are 4-cent stamps and 6-cent stamps. Altogether they cost 1280 cents. How many 4-cent stamps are there?



There are 140 stamps which are 4-cent stamps and 3-cent stamps. Altogether they cost 490 cents. How many 4-cent stamps are there?



There are 190 stamps which are 6-cent stamps and 5-cent stamps. Altogether they cost 1030 cents. How many 6-cent stamps are there?



There are 190 stamps which are 5-cent stamps and 4-cent stamps. Altogether they cost 850 cents. How many 5-cent stamps are there?



There are 280 stamps which are 5-cent stamps and 6-cent stamps. Altogether they cost 1530 cents. How many 5-cent stamps are there?



There are 270 stamps which are 8-cent stamps and 9-cent stamps. Altogether they cost 2290 cents. How many 8-cent stamps are there?



There are 160 stamps which are 5-cent stamps and 6-cent stamps. Altogether they cost 850 cents. How many 5-cent stamps are there?



오늘 8원짜리 3원짜리 우표 총 250 장을 사고, 1450 원을 지불 했을때, 몇개의 8원짜리 우표를 샀는가?



There are 210 stamps which are 7-cent stamps and 5-cent stamps. Altogether they cost 1250 cents. How many 7-cent stamps are there?



There are 170 stamps which are 8-cent stamps and 3-cent stamps. Altogether they cost 1060 cents. How many 8-cent stamps are there?



+(         )

 

(         )+

++[[          ]]++

877    140 70 80 90 150 ( 530 )   140 110 140 100 110 ( 600 )   [[ 1130 ]]