637  Leg-Stamp
닭다리 개다리 2

Name : _________________

refresh

There are 150 heads of Chickens and Dogs together. Altogether there are 420 legs. How many chickens are there?



There are 130 heads of Chickens and Dogs together. Altogether there are 400 legs. How many chickens are there?



우리 안에 총 230 마리의 닭과 개가 있다. 다리를 세어보니, 총합쳐서 660 다리가 있다. 몇마리의 닭이 우리 안에 있는가?



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



There are 120 heads of Chickens and Dogs together. Altogether there are 320 legs. How many chickens are there?

There are 230 stamps which are 3-cent stamps and 9-cent stamps. Altogether they cost 1170 cents. How many 3-cent stamps are there?



There are 270 stamps which are 3-cent stamps and 8-cent stamps. Altogether they cost 1410 cents. How many 3-cent stamps are there?



오늘 8원짜리 9원짜리 우표 총 210장을 사고, 1760 원을 지불 했을때, 몇개의 8원짜리 우표를 샀는가?



There are 270 stamps which are 5-cent stamps and 9-cent stamps. Altogether they cost 1870 cents. How many 5-cent stamps are there?



There are 200 stamps which are 6-cent stamps and 3-cent stamps. Altogether they cost 1050 cents. How many 6-cent stamps are there?

+(         )

(         )+

++[[          ]]++