207  Leg-Stamp
닭다리 개다리 1

Name : _________________

refresh

There are 170 heads of Chickens and Dogs together. Altogether there are 600 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 110 heads of Chickens and Dogs together. Altogether there are 320 legs. How many chickens are there?



There are 180 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 520 legs. How many chickens are there?

There are 260 stamps which are 4-cent stamps and 7-cent stamps. Altogether they cost 1400 cents. How many 4-cent stamps are there?



There are 170 stamps which are 4-cent stamps and 6-cent stamps. Altogether they cost 840 cents. How many 4-cent stamps are there?



There are 190 stamps which are 6-cent stamps and 9-cent stamps. Altogether they cost 1470 cents. How many 6-cent stamps are there?



There are 160 stamps which are 3-cent stamps and 7-cent stamps. Altogether they cost 800 cents. How many 3-cent stamps are there?



There are 210 stamps which are 4-cent stamps and 8-cent stamps. Altogether they cost 1280 cents. How many 4-cent stamps are there?

+(         )

(         )+

++[[          ]]++