967  Stamp
How many stamps? 2

Name : _________________

 

refresh

There are 240 stamps which are 7-cent stamps and 9-cent stamps. Altogether they cost 1880 cents. How many 7-cent stamps are there?



There are 220 stamps which are 3-cent stamps and 8-cent stamps. Altogether they cost 1310 cents. How many 3-cent stamps are there?



There are 170 stamps which are 4-cent stamps and 9-cent stamps. Altogether they cost 980 cents. How many 4-cent stamps are there?



There are 240 stamps which are 3-cent stamps and 8-cent stamps. Altogether they cost 1270 cents. How many 3-cent stamps are there?



There are 200 stamps which are 6-cent stamps and 3-cent stamps. Altogether they cost 960 cents. How many 6-cent stamps are there?



There are 180 stamps which are 7-cent stamps and 3-cent stamps. Altogether they cost 860 cents. How many 7-cent stamps are there?



There are 150 stamps which are 4-cent stamps and 3-cent stamps. Altogether they cost 540 cents. How many 4-cent stamps are there?



오늘 7원짜리 5원짜리 우표 총 220 장을 사고, 1360 원을 지불 했을때, 몇개의 7원짜리 우표를 샀는가?



There are 250 stamps which are 6-cent stamps and 7-cent stamps. Altogether they cost 1600 cents. How many 6-cent stamps are there?



There are 230 stamps which are 6-cent stamps and 8-cent stamps. Altogether they cost 1600 cents. How many 6-cent stamps are there?



+(         )

 

(         )+

++[[          ]]++

967    140 90 110 130 120 ( 590 )   80 90 130 150 120 ( 570 )   [[ 1160 ]]