476  Leg-Stamp
닭다리 개다리 1

Name : _________________

refresh

There are 100 heads of Chickens and Dogs together. Altogether there are 260 legs. How many chickens are there?



There are 130 heads of Chickens and Dogs together. Altogether there are 340 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 220 heads of Chickens and Dogs together. Altogether there are 680 legs. How many chickens are there?



There are 90 heads of Chickens and Dogs together. Altogether there are 240 legs. How many chickens are there?

There are 190 stamps which are 4-cent stamps and 7-cent stamps. Altogether they cost 940 cents. How many 4-cent stamps are there?



There are 180 stamps which are 5-cent stamps and 8-cent stamps. Altogether they cost 1200 cents. How many 5-cent stamps are there?



There are 210 stamps which are 5-cent stamps and 6-cent stamps. Altogether they cost 1110 cents. How many 5-cent stamps are there?



There are 190 stamps which are 7-cent stamps and 4-cent stamps. Altogether they cost 970 cents. How many 7-cent stamps are there?



There are 150 stamps which are 8-cent stamps and 7-cent stamps. Altogether they cost 1140 cents. How many 8-cent stamps are there?

+(         )

(         )+

++[[          ]]++