891  Stamp
How many stamps? 2

Name : _________________

 

refresh

There are 190 stamps which are 5-cent stamps and 7-cent stamps. Altogether they cost 1150 cents. How many 5-cent stamps are there?



There are 200 stamps which are 4-cent stamps and 8-cent stamps. Altogether they cost 1280 cents. How many 4-cent stamps are there?



There are 170 stamps which are 5-cent stamps and 7-cent stamps. Altogether they cost 950 cents. How many 5-cent stamps are there?



There are 260 stamps which are 4-cent stamps and 3-cent stamps. Altogether they cost 910 cents. How many 4-cent stamps are there?



There are 230 stamps which are 4-cent stamps and 5-cent stamps. Altogether they cost 1010 cents. How many 4-cent stamps are there?



There are 220 stamps which are 3-cent stamps and 5-cent stamps. Altogether they cost 920 cents. How many 3-cent stamps are there?



There are 200 stamps which are 4-cent stamps and 6-cent stamps. Altogether they cost 940 cents. How many 4-cent stamps are there?



오늘 3원짜리 8원짜리 우표 총 220 장을 사고, 1160 원을 지불 했을때, 몇개의 3원짜리 우표를 샀는가?



There are 190 stamps which are 3-cent stamps and 9-cent stamps. Altogether they cost 930 cents. How many 3-cent stamps are there?



There are 190 stamps which are 8-cent stamps and 3-cent stamps. Altogether they cost 970 cents. How many 8-cent stamps are there?



+(         )

 

(         )+

++[[          ]]++

891    90 80 120 130 140 ( 560 )   90 130 120 130 80 ( 550 )   [[ 1110 ]]