287  Leg-Stamp
닭다리 개다리 1

Name : _________________

refresh

There are 80 heads of Chickens and Dogs together. Altogether there are 220 legs. How many chickens are there?



There are 110 heads of Chickens and Dogs together. Altogether there are 300 legs. How many chickens are there?



There are 150 heads of Chickens and Dogs together. Altogether there are 520 legs. How many chickens are there?



There are 220 heads of Chickens and Dogs together. Altogether there are 700 legs. How many chickens are there?



There are 140 heads of Chickens and Dogs together. Altogether there are 380 legs. How many chickens are there?

There are 210 stamps which are 6-cent stamps and 8-cent stamps. Altogether they cost 1460 cents. How many 6-cent stamps are there?



There are 170 stamps which are 8-cent stamps and 9-cent stamps. Altogether they cost 1440 cents. How many 8-cent stamps are there?



There are 180 stamps which are 4-cent stamps and 6-cent stamps. Altogether they cost 820 cents. How many 4-cent stamps are there?



There are 230 stamps which are 4-cent stamps and 6-cent stamps. Altogether they cost 1140 cents. How many 4-cent stamps are there?



There are 170 stamps which are 8-cent stamps and 5-cent stamps. Altogether they cost 1210 cents. How many 8-cent stamps are there?

+(         )

(         )+

++[[          ]]++