395  Stamp
How many stamps? 2

Name : _________________

 

refresh

There are 140 stamps which are 7-cent stamps and 8-cent stamps. Altogether they cost 1030 cents. How many 7-cent stamps are there?



There are 170 stamps which are 3-cent stamps and 6-cent stamps. Altogether they cost 810 cents. How many 3-cent stamps are there?



There are 130 stamps which are 4-cent stamps and 6-cent stamps. Altogether they cost 620 cents. How many 4-cent stamps are there?



There are 220 stamps which are 3-cent stamps and 7-cent stamps. Altogether they cost 1060 cents. How many 3-cent stamps are there?



There are 200 stamps which are 3-cent stamps and 4-cent stamps. Altogether they cost 730 cents. How many 3-cent stamps are there?



There are 200 stamps which are 7-cent stamps and 6-cent stamps. Altogether they cost 1280 cents. How many 7-cent stamps are there?



There are 160 stamps which are 3-cent stamps and 4-cent stamps. Altogether they cost 550 cents. How many 3-cent stamps are there?



오늘 8원짜리 5원짜리 우표 총 250 장을 사고, 1640 원을 지불 했을때, 몇개의 8원짜리 우표를 샀는가?



There are 140 stamps which are 7-cent stamps and 9-cent stamps. Altogether they cost 1100 cents. How many 7-cent stamps are there?



There are 150 stamps which are 8-cent stamps and 7-cent stamps. Altogether they cost 1120 cents. How many 8-cent stamps are there?



+(         )

 

(         )+

++[[          ]]++

395    90 70 80 120 70 ( 430 )   80 90 130 80 70 ( 450 )   [[ 880 ]]