203  Stamp
How many stamps? 2

Name : _________________

 

refresh

There are 150 stamps which are 7-cent stamps and 3-cent stamps. Altogether they cost 730 cents. How many 7-cent stamps are there?



There are 150 stamps which are 3-cent stamps and 5-cent stamps. Altogether they cost 610 cents. How many 3-cent stamps are there?



There are 200 stamps which are 4-cent stamps and 9-cent stamps. Altogether they cost 1400 cents. How many 4-cent stamps are there?



There are 230 stamps which are 4-cent stamps and 5-cent stamps. Altogether they cost 1050 cents. How many 4-cent stamps are there?



There are 190 stamps which are 3-cent stamps and 5-cent stamps. Altogether they cost 790 cents. How many 3-cent stamps are there?



There are 180 stamps which are 8-cent stamps and 6-cent stamps. Altogether they cost 1260 cents. How many 8-cent stamps are there?



There are 210 stamps which are 8-cent stamps and 4-cent stamps. Altogether they cost 1320 cents. How many 8-cent stamps are there?



오늘 5원짜리 7원짜리 우표 총 180 장을 사고, 1080 원을 지불 했을때, 몇개의 5원짜리 우표를 샀는가?



There are 260 stamps which are 3-cent stamps and 4-cent stamps. Altogether they cost 890 cents. How many 3-cent stamps are there?



There are 170 stamps which are 7-cent stamps and 3-cent stamps. Altogether they cost 950 cents. How many 7-cent stamps are there?



+(         )

 

(         )+

++[[          ]]++

203    70 70 80 100 80 ( 400 )   90 120 90 150 110 ( 560 )   [[ 960 ]]