293  Leg-Stamp
닭다리 개다리 2

Name : _________________

refresh

There are 170 heads of Chickens and Dogs together. Altogether there are 440 legs. How many chickens are there?



There are 110 heads of Chickens and Dogs together. Altogether there are 280 legs. How many chickens are there?



우리 안에 총 200 마리의 닭과 개가 있다. 다리를 세어보니, 총합쳐서 520 다리가 있다. 몇마리의 닭이 우리 안에 있는가?



There are 180 heads of Chickens and Dogs together. Altogether there are 560 legs. How many chickens are there?



There are 110 heads of Chickens and Dogs together. Altogether there are 280 legs. How many chickens are there?

There are 280 stamps which are 6-cent stamps and 4-cent stamps. Altogether they cost 1420 cents. How many 6-cent stamps are there?



There are 230 stamps which are 7-cent stamps and 3-cent stamps. Altogether they cost 1170 cents. How many 7-cent stamps are there?



오늘 5원짜리 3원짜리 우표 총 210장을 사고, 890 원을 지불 했을때, 몇개의 5원짜리 우표를 샀는가?



There are 250 stamps which are 5-cent stamps and 7-cent stamps. Altogether they cost 1450 cents. How many 5-cent stamps are there?



There are 210 stamps which are 7-cent stamps and 5-cent stamps. Altogether they cost 1290 cents. How many 7-cent stamps are there?

+(         )

(         )+

++[[          ]]++