492  Stamp
How many stamps? 2

Name : _________________

 

refresh

There are 200 stamps which are 8-cent stamps and 5-cent stamps. Altogether they cost 1300 cents. How many 8-cent stamps are there?



There are 240 stamps which are 8-cent stamps and 5-cent stamps. Altogether they cost 1590 cents. How many 8-cent stamps are there?



There are 230 stamps which are 4-cent stamps and 3-cent stamps. Altogether they cost 840 cents. How many 4-cent stamps are there?



There are 210 stamps which are 4-cent stamps and 7-cent stamps. Altogether they cost 1140 cents. How many 4-cent stamps are there?



There are 130 stamps which are 8-cent stamps and 5-cent stamps. Altogether they cost 890 cents. How many 8-cent stamps are there?



There are 230 stamps which are 6-cent stamps and 3-cent stamps. Altogether they cost 1050 cents. How many 6-cent stamps are there?



There are 250 stamps which are 4-cent stamps and 8-cent stamps. Altogether they cost 1520 cents. How many 4-cent stamps are there?



오늘 6원짜리 7원짜리 우표 총 220 장을 사고, 1390 원을 지불 했을때, 몇개의 6원짜리 우표를 샀는가?



There are 210 stamps which are 8-cent stamps and 5-cent stamps. Altogether they cost 1470 cents. How many 8-cent stamps are there?



There are 190 stamps which are 5-cent stamps and 8-cent stamps. Altogether they cost 1190 cents. How many 5-cent stamps are there?



+(         )

 

(         )+

++[[          ]]++

492    100 130 150 110 80 ( 570 )   120 120 150 140 110 ( 640 )   [[ 1210 ]]