301  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 140 heads of Chickens and Dogs together. Altogether there are 440 legs. How many chickens are there?



There are 160 heads of Chickens and Dogs together. Altogether there are 440 legs. How many chickens are there?



There are 200 heads of Chickens and Dogs together. Altogether there are 560 legs. How many chickens are there?



There are 160 heads of Chickens and Dogs together. Altogether there are 500 legs. How many chickens are there?

There are 210 stamps which are 4-cent stamps and 5-cent stamps. Altogether they cost 910 cents. How many 4-cent stamps are there?



There are 240 stamps which are 8-cent stamps and 5-cent stamps. Altogether they cost 1530 cents. How many 8-cent stamps are there?



There are 200 stamps which are 3-cent stamps and 7-cent stamps. Altogether they cost 1120 cents. How many 3-cent stamps are there?



There are 260 stamps which are 3-cent stamps and 5-cent stamps. Altogether they cost 1040 cents. How many 3-cent stamps are there?



There are 180 stamps which are 5-cent stamps and 7-cent stamps. Altogether they cost 1040 cents. How many 5-cent stamps are there?

+(         )

(         )+

++[[          ]]++