921  Leg-Stamp
닭다리 개다리 2

Name : _________________

refresh

There are 120 heads of Chickens and Dogs together. Altogether there are 300 legs. How many chickens are there?



There are 160 heads of Chickens and Dogs together. Altogether there are 440 legs. How many chickens are there?



우리 안에 총 140 마리의 닭과 개가 있다. 다리를 세어보니, 총합쳐서 480 다리가 있다. 몇마리의 닭이 우리 안에 있는가?



There are 180 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 540 legs. How many chickens are there?

There are 120 stamps which are 7-cent stamps and 3-cent stamps. Altogether they cost 640 cents. How many 7-cent stamps are there?



There are 280 stamps which are 4-cent stamps and 9-cent stamps. Altogether they cost 1770 cents. How many 4-cent stamps are there?



오늘 7원짜리 3원짜리 우표 총 190장을 사고, 930 원을 지불 했을때, 몇개의 7원짜리 우표를 샀는가?



There are 220 stamps which are 5-cent stamps and 8-cent stamps. Altogether they cost 1460 cents. How many 5-cent stamps are there?



There are 190 stamps which are 5-cent stamps and 4-cent stamps. Altogether they cost 880 cents. How many 5-cent stamps are there?

+(         )

(         )+

++[[          ]]++