463  Stamp
How many stamps? 2

Name : _________________

 

refresh

There are 220 stamps which are 3-cent stamps and 6-cent stamps. Altogether they cost 1050 cents. How many 3-cent stamps are there?



There are 200 stamps which are 3-cent stamps and 6-cent stamps. Altogether they cost 840 cents. How many 3-cent stamps are there?



There are 210 stamps which are 8-cent stamps and 4-cent stamps. Altogether they cost 1200 cents. How many 8-cent stamps are there?



There are 240 stamps which are 8-cent stamps and 7-cent stamps. Altogether they cost 1790 cents. How many 8-cent stamps are there?



There are 220 stamps which are 6-cent stamps and 3-cent stamps. Altogether they cost 1080 cents. How many 6-cent stamps are there?



There are 280 stamps which are 4-cent stamps and 5-cent stamps. Altogether they cost 1250 cents. How many 4-cent stamps are there?



There are 230 stamps which are 6-cent stamps and 8-cent stamps. Altogether they cost 1560 cents. How many 6-cent stamps are there?



오늘 5원짜리 9원짜리 우표 총 190 장을 사고, 1230 원을 지불 했을때, 몇개의 5원짜리 우표를 샀는가?



There are 210 stamps which are 3-cent stamps and 8-cent stamps. Altogether they cost 1180 cents. How many 3-cent stamps are there?



There are 130 stamps which are 7-cent stamps and 5-cent stamps. Altogether they cost 790 cents. How many 7-cent stamps are there?



+(         )

 

(         )+

++[[          ]]++

463    90 120 90 110 140 ( 550 )   150 140 120 100 70 ( 580 )   [[ 1130 ]]