928  Stamp
How many stamps? 2

Name : _________________

 

refresh

There are 230 stamps which are 4-cent stamps and 7-cent stamps. Altogether they cost 1190 cents. How many 4-cent stamps are there?



There are 180 stamps which are 7-cent stamps and 5-cent stamps. Altogether they cost 1080 cents. How many 7-cent stamps are there?



There are 200 stamps which are 3-cent stamps and 8-cent stamps. Altogether they cost 1100 cents. How many 3-cent stamps are there?



There are 200 stamps which are 5-cent stamps and 6-cent stamps. Altogether they cost 1070 cents. How many 5-cent stamps are there?



There are 130 stamps which are 3-cent stamps and 9-cent stamps. Altogether they cost 750 cents. How many 3-cent stamps are there?



There are 220 stamps which are 4-cent stamps and 6-cent stamps. Altogether they cost 1100 cents. How many 4-cent stamps are there?



There are 200 stamps which are 8-cent stamps and 7-cent stamps. Altogether they cost 1550 cents. How many 8-cent stamps are there?



오늘 7원짜리 4원짜리 우표 총 230 장을 사고, 1340 원을 지불 했을때, 몇개의 7원짜리 우표를 샀는가?



There are 200 stamps which are 6-cent stamps and 7-cent stamps. Altogether they cost 1250 cents. How many 6-cent stamps are there?



There are 190 stamps which are 7-cent stamps and 5-cent stamps. Altogether they cost 1150 cents. How many 7-cent stamps are there?



+(         )

 

(         )+

++[[          ]]++

928    140 90 100 130 70 ( 530 )   110 150 140 150 100 ( 650 )   [[ 1180 ]]