359  Stamp
How many stamps? 2

Name : _________________

 

refresh

There are 170 stamps which are 7-cent stamps and 6-cent stamps. Altogether they cost 1100 cents. How many 7-cent stamps are there?



There are 200 stamps which are 8-cent stamps and 6-cent stamps. Altogether they cost 1500 cents. How many 8-cent stamps are there?



There are 160 stamps which are 3-cent stamps and 6-cent stamps. Altogether they cost 750 cents. How many 3-cent stamps are there?



There are 160 stamps which are 8-cent stamps and 7-cent stamps. Altogether they cost 1230 cents. How many 8-cent stamps are there?



There are 150 stamps which are 3-cent stamps and 7-cent stamps. Altogether they cost 770 cents. How many 3-cent stamps are there?



There are 140 stamps which are 8-cent stamps and 9-cent stamps. Altogether they cost 1180 cents. How many 8-cent stamps are there?



There are 190 stamps which are 3-cent stamps and 7-cent stamps. Altogether they cost 970 cents. How many 3-cent stamps are there?



오늘 7원짜리 5원짜리 우표 총 200 장을 사고, 1260 원을 지불 했을때, 몇개의 7원짜리 우표를 샀는가?



There are 170 stamps which are 8-cent stamps and 5-cent stamps. Altogether they cost 1090 cents. How many 8-cent stamps are there?



There are 270 stamps which are 7-cent stamps and 8-cent stamps. Altogether they cost 2010 cents. How many 7-cent stamps are there?



+(         )

 

(         )+

++[[          ]]++

359    80 150 70 110 70 ( 480 )   80 90 130 80 150 ( 530 )   [[ 1010 ]]