166  Leg-Stamp
닭다리 개다리 2

Name : _________________

refresh

There are 250 heads of Chickens and Dogs together. Altogether there are 720 legs. How many chickens are there?



There are 200 heads of Chickens and Dogs together. Altogether there are 540 legs. How many chickens are there?



우리 안에 총 170 마리의 닭과 개가 있다. 다리를 세어보니, 총합쳐서 440 다리가 있다. 몇마리의 닭이 우리 안에 있는가?



There are 70 heads of Chickens and Dogs together. Altogether there are 200 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 190 stamps which are 7-cent stamps and 9-cent stamps. Altogether they cost 1550 cents. How many 7-cent stamps are there?



There are 120 stamps which are 5-cent stamps and 8-cent stamps. Altogether they cost 750 cents. How many 5-cent stamps are there?



오늘 5원짜리 3원짜리 우표 총 230장을 사고, 990 원을 지불 했을때, 몇개의 5원짜리 우표를 샀는가?



There are 260 stamps which are 8-cent stamps and 6-cent stamps. Altogether they cost 1820 cents. How many 8-cent stamps are there?



There are 220 stamps which are 8-cent stamps and 7-cent stamps. Altogether they cost 1650 cents. How many 8-cent stamps are there?

+(         )

(         )+

++[[          ]]++