422  Stamp
How many stamps? 2

Name : _________________

 

refresh

There are 140 stamps which are 8-cent stamps and 6-cent stamps. Altogether they cost 1020 cents. How many 8-cent stamps are there?



There are 250 stamps which are 8-cent stamps and 6-cent stamps. Altogether they cost 1740 cents. How many 8-cent stamps are there?



There are 170 stamps which are 6-cent stamps and 5-cent stamps. Altogether they cost 930 cents. How many 6-cent stamps are there?



There are 170 stamps which are 5-cent stamps and 6-cent stamps. Altogether they cost 900 cents. How many 5-cent stamps are there?



There are 150 stamps which are 5-cent stamps and 6-cent stamps. Altogether they cost 820 cents. How many 5-cent stamps are there?



There are 130 stamps which are 4-cent stamps and 8-cent stamps. Altogether they cost 720 cents. How many 4-cent stamps are there?



There are 190 stamps which are 4-cent stamps and 5-cent stamps. Altogether they cost 810 cents. How many 4-cent stamps are there?



오늘 3원짜리 5원짜리 우표 총 220 장을 사고, 880 원을 지불 했을때, 몇개의 3원짜리 우표를 샀는가?



There are 160 stamps which are 6-cent stamps and 9-cent stamps. Altogether they cost 1110 cents. How many 6-cent stamps are there?



There are 230 stamps which are 5-cent stamps and 8-cent stamps. Altogether they cost 1420 cents. How many 5-cent stamps are there?



+(         )

 

(         )+

++[[          ]]++

422    90 120 80 120 80 ( 490 )   80 140 110 110 140 ( 580 )   [[ 1070 ]]