412  Leg-Stamp
닭다리 개다리 1

Name : _________________

refresh

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



There are 190 heads of Chickens and Dogs together. Altogether there are 600 legs. How many chickens are there?



There are 170 heads of Chickens and Dogs together. Altogether there are 580 legs. How many chickens are there?



There are 130 heads of Chickens and Dogs together. Altogether there are 420 legs. How many chickens are there?



There are 210 heads of Chickens and Dogs together. Altogether there are 620 legs. How many chickens are there?

There are 180 stamps which are 3-cent stamps and 8-cent stamps. Altogether they cost 840 cents. How many 3-cent stamps are there?



There are 150 stamps which are 4-cent stamps and 3-cent stamps. Altogether they cost 520 cents. How many 4-cent stamps are there?



There are 140 stamps which are 4-cent stamps and 8-cent stamps. Altogether they cost 800 cents. How many 4-cent stamps are there?



There are 200 stamps which are 5-cent stamps and 7-cent stamps. Altogether they cost 1220 cents. How many 5-cent stamps are there?



There are 200 stamps which are 3-cent stamps and 4-cent stamps. Altogether they cost 670 cents. How many 3-cent stamps are there?

+(         )

(         )+

++[[          ]]++