252  Leg-Stamp
닭다리 개다리 1

Name : _________________

refresh

There are 160 heads of Chickens and Dogs together. Altogether there are 400 legs. How many chickens are there?



There are 230 heads of Chickens and Dogs together. Altogether there are 660 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 180 heads of Chickens and Dogs together. Altogether there are 440 legs. How many chickens are there?



There are 150 heads of Chickens and Dogs together. Altogether there are 440 legs. How many chickens are there?

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



There are 200 stamps which are 7-cent stamps and 4-cent stamps. Altogether they cost 1220 cents. How many 7-cent stamps are there?



There are 270 stamps which are 7-cent stamps and 8-cent stamps. Altogether they cost 2010 cents. How many 7-cent stamps are there?



There are 150 stamps which are 7-cent stamps and 4-cent stamps. Altogether they cost 810 cents. How many 7-cent stamps are there?



There are 230 stamps which are 8-cent stamps and 9-cent stamps. Altogether they cost 1950 cents. How many 8-cent stamps are there?

+(         )

(         )+

++[[          ]]++