186  Leg-Stamp
닭다리 개다리 2

Name : _________________

refresh

There are 90 heads of Chickens and Dogs together. Altogether there are 280 legs. How many chickens are there?



There are 260 heads of Chickens and Dogs together. Altogether there are 760 legs. How many chickens are there?



우리 안에 총 170 마리의 닭과 개가 있다. 다리를 세어보니, 총합쳐서 540 다리가 있다. 몇마리의 닭이 우리 안에 있는가?



There are 120 heads of Chickens and Dogs together. Altogether there are 400 legs. How many chickens are there?



There are 180 heads of Chickens and Dogs together. Altogether there are 440 legs. How many chickens are there?

There are 200 stamps which are 8-cent stamps and 4-cent stamps. Altogether they cost 1280 cents. How many 8-cent stamps are there?



There are 200 stamps which are 4-cent stamps and 6-cent stamps. Altogether they cost 940 cents. How many 4-cent stamps are there?



오늘 7원짜리 9원짜리 우표 총 270장을 사고, 2150 원을 지불 했을때, 몇개의 7원짜리 우표를 샀는가?



There are 190 stamps which are 5-cent stamps and 7-cent stamps. Altogether they cost 1170 cents. How many 5-cent stamps are there?



There are 250 stamps which are 8-cent stamps and 9-cent stamps. Altogether they cost 2100 cents. How many 8-cent stamps are there?

+(         )

(         )+

++[[          ]]++