561  Leg-Stamp
닭다리 개다리 2

Name : _________________

refresh

There are 200 heads of Chickens and Dogs together. Altogether there are 580 legs. How many chickens are there?



There are 190 heads of Chickens and Dogs together. Altogether there are 640 legs. How many chickens are there?



우리 안에 총 250 마리의 닭과 개가 있다. 다리를 세어보니, 총합쳐서 720 다리가 있다. 몇마리의 닭이 우리 안에 있는가?



There are 180 heads of Chickens and Dogs together. Altogether there are 620 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 270 stamps which are 4-cent stamps and 8-cent stamps. Altogether they cost 1600 cents. How many 4-cent stamps are there?



There are 230 stamps which are 8-cent stamps and 4-cent stamps. Altogether they cost 1360 cents. How many 8-cent stamps are there?



오늘 7원짜리 6원짜리 우표 총 220장을 사고, 1440 원을 지불 했을때, 몇개의 7원짜리 우표를 샀는가?



There are 250 stamps which are 7-cent stamps and 4-cent stamps. Altogether they cost 1450 cents. How many 7-cent stamps are there?



There are 230 stamps which are 4-cent stamps and 7-cent stamps. Altogether they cost 1220 cents. How many 4-cent stamps are there?

+(         )

(         )+

++[[          ]]++