167  Stamp
How many stamps? 2

Name : _________________

 

refresh

There are 280 stamps which are 8-cent stamps and 4-cent stamps. Altogether they cost 1720 cents. How many 8-cent stamps are there?



There are 240 stamps which are 3-cent stamps and 6-cent stamps. Altogether they cost 1080 cents. How many 3-cent stamps are there?



There are 190 stamps which are 5-cent stamps and 4-cent stamps. Altogether they cost 840 cents. How many 5-cent stamps are there?



There are 260 stamps which are 7-cent stamps and 8-cent stamps. Altogether they cost 1950 cents. How many 7-cent stamps are there?



There are 270 stamps which are 3-cent stamps and 5-cent stamps. Altogether they cost 1070 cents. How many 3-cent stamps are there?



There are 230 stamps which are 5-cent stamps and 9-cent stamps. Altogether they cost 1470 cents. How many 5-cent stamps are there?



There are 230 stamps which are 5-cent stamps and 8-cent stamps. Altogether they cost 1540 cents. How many 5-cent stamps are there?



오늘 5원짜리 8원짜리 우표 총 210 장을 사고, 1230 원을 지불 했을때, 몇개의 5원짜리 우표를 샀는가?



There are 210 stamps which are 3-cent stamps and 5-cent stamps. Altogether they cost 850 cents. How many 3-cent stamps are there?



There are 190 stamps which are 4-cent stamps and 5-cent stamps. Altogether they cost 860 cents. How many 4-cent stamps are there?



+(         )

 

(         )+

++[[          ]]++

167    150 120 80 130 140 ( 620 )   150 100 150 100 90 ( 590 )   [[ 1210 ]]