226  Stamp
How many stamps? 2

Name : _________________

 

refresh

There are 150 stamps which are 6-cent stamps and 3-cent stamps. Altogether they cost 660 cents. How many 6-cent stamps are there?



There are 140 stamps which are 8-cent stamps and 5-cent stamps. Altogether they cost 910 cents. How many 8-cent stamps are there?



There are 180 stamps which are 7-cent stamps and 9-cent stamps. Altogether they cost 1400 cents. How many 7-cent stamps are there?



There are 280 stamps which are 6-cent stamps and 5-cent stamps. Altogether they cost 1550 cents. How many 6-cent stamps are there?



There are 210 stamps which are 3-cent stamps and 8-cent stamps. Altogether they cost 930 cents. How many 3-cent stamps are there?



There are 220 stamps which are 5-cent stamps and 6-cent stamps. Altogether they cost 1190 cents. How many 5-cent stamps are there?



There are 200 stamps which are 7-cent stamps and 3-cent stamps. Altogether they cost 1080 cents. How many 7-cent stamps are there?



오늘 3원짜리 7원짜리 우표 총 170 장을 사고, 710 원을 지불 했을때, 몇개의 3원짜리 우표를 샀는가?



There are 260 stamps which are 5-cent stamps and 7-cent stamps. Altogether they cost 1540 cents. How many 5-cent stamps are there?



There are 250 stamps which are 6-cent stamps and 9-cent stamps. Altogether they cost 1800 cents. How many 6-cent stamps are there?



+(         )

 

(         )+

++[[          ]]++

226    70 70 110 150 150 ( 550 )   130 120 120 140 150 ( 660 )   [[ 1210 ]]