508  Stamp
How many stamps? 2

Name : _________________

 

refresh

There are 190 stamps which are 5-cent stamps and 4-cent stamps. Altogether they cost 860 cents. How many 5-cent stamps are there?



There are 250 stamps which are 5-cent stamps and 7-cent stamps. Altogether they cost 1510 cents. How many 5-cent stamps are there?



There are 210 stamps which are 6-cent stamps and 7-cent stamps. Altogether they cost 1340 cents. How many 6-cent stamps are there?



There are 220 stamps which are 5-cent stamps and 7-cent stamps. Altogether they cost 1360 cents. How many 5-cent stamps are there?



There are 160 stamps which are 3-cent stamps and 7-cent stamps. Altogether they cost 760 cents. How many 3-cent stamps are there?



There are 140 stamps which are 8-cent stamps and 9-cent stamps. Altogether they cost 1170 cents. How many 8-cent stamps are there?



There are 200 stamps which are 4-cent stamps and 3-cent stamps. Altogether they cost 710 cents. How many 4-cent stamps are there?



오늘 8원짜리 9원짜리 우표 총 190 장을 사고, 1570 원을 지불 했을때, 몇개의 8원짜리 우표를 샀는가?



There are 220 stamps which are 5-cent stamps and 3-cent stamps. Altogether they cost 940 cents. How many 5-cent stamps are there?



There are 190 stamps which are 4-cent stamps and 8-cent stamps. Altogether they cost 1120 cents. How many 4-cent stamps are there?



+(         )

 

(         )+

++[[          ]]++

508    100 120 130 90 90 ( 530 )   90 110 140 140 100 ( 580 )   [[ 1110 ]]