616  Stamp
How many stamps? 1

Name : _________________

 

refresh

There are 240 stamps which are 5-cent stamps and 4-cent stamps. Altogether they cost 1070 cents. How many 5-cent stamps are there?



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



There are 210 stamps which are 8-cent stamps and 7-cent stamps. Altogether they cost 1580 cents. How many 8-cent stamps are there?



There are 220 stamps which are 3-cent stamps and 9-cent stamps. Altogether they cost 1140 cents. How many 3-cent stamps are there?



There are 210 stamps which are 3-cent stamps and 7-cent stamps. Altogether they cost 1070 cents. How many 3-cent stamps are there?



There are 200 stamps which are 3-cent stamps and 6-cent stamps. Altogether they cost 960 cents. How many 3-cent stamps are there?



There are 150 stamps which are 4-cent stamps and 7-cent stamps. Altogether they cost 840 cents. How many 4-cent stamps are there?



There are 200 stamps which are 5-cent stamps and 6-cent stamps. Altogether they cost 1080 cents. How many 5-cent stamps are there?



There are 150 stamps which are 3-cent stamps and 6-cent stamps. Altogether they cost 600 cents. How many 3-cent stamps are there?



There are 180 stamps which are 4-cent stamps and 9-cent stamps. Altogether they cost 1020 cents. How many 4-cent stamps are there?



+(         )

 

(         )+

++[[          ]]++

616    110 90 110 140 100 ( 550 )   80 70 120 100 120 ( 490 )   [[ 1040 ]]