401  Leg-Stamp
닭다리 개다리 2

Name : _________________

refresh

There are 170 heads of Chickens and Dogs together. Altogether there are 560 legs. How many chickens are there?



There are 140 heads of Chickens and Dogs together. Altogether there are 400 legs. How many chickens are there?



우리 안에 총 140 마리의 닭과 개가 있다. 다리를 세어보니, 총합쳐서 360 다리가 있다. 몇마리의 닭이 우리 안에 있는가?



There are 230 heads of Chickens and Dogs together. Altogether there are 700 legs. How many chickens are there?



There are 110 heads of Chickens and Dogs together. Altogether there are 340 legs. How many chickens are there?

There are 190 stamps which are 5-cent stamps and 9-cent stamps. Altogether they cost 1230 cents. How many 5-cent stamps are there?



There are 230 stamps which are 4-cent stamps and 8-cent stamps. Altogether they cost 1440 cents. How many 4-cent stamps are there?



오늘 7원짜리 3원짜리 우표 총 200장을 사고, 1040 원을 지불 했을때, 몇개의 7원짜리 우표를 샀는가?



There are 200 stamps which are 4-cent stamps and 3-cent stamps. Altogether they cost 680 cents. How many 4-cent stamps are there?



There are 260 stamps which are 7-cent stamps and 4-cent stamps. Altogether they cost 1490 cents. How many 7-cent stamps are there?

+(         )

(         )+

++[[          ]]++