545  Leg-Stamp
닭다리 개다리 1

Name : _________________

refresh

There are 110 heads of Chickens and Dogs together. Altogether there are 280 legs. How many chickens are there?



There are 150 heads of Chickens and Dogs together. Altogether there are 400 legs. How many chickens are there?



There are 140 heads of Chickens and Dogs together. Altogether there are 460 legs. How many chickens are there?



There are 240 heads of Chickens and Dogs together. Altogether there are 740 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 200 stamps which are 3-cent stamps and 4-cent stamps. Altogether they cost 660 cents. How many 3-cent stamps are there?



There are 200 stamps which are 5-cent stamps and 6-cent stamps. Altogether they cost 1110 cents. How many 5-cent stamps are there?



There are 140 stamps which are 5-cent stamps and 3-cent stamps. Altogether they cost 560 cents. How many 5-cent stamps are there?



There are 200 stamps which are 8-cent stamps and 4-cent stamps. Altogether they cost 1120 cents. How many 8-cent stamps are there?



There are 150 stamps which are 7-cent stamps and 5-cent stamps. Altogether they cost 930 cents. How many 7-cent stamps are there?

+(         )

(         )+

++[[          ]]++