3 so co tong la 2000 . Biet so thu nhat hon tong 2 so kia la 108. Neu them vao so thu ba 24 don vi thi duoc so thu 2 . Tim so thu 2?

truhg binh công cua hai so la 6482 . tim hai so do,biet rang neu tang so thu nhat them 246 don vi thi duoc so thu hai.tim so thu hai

1.tong cua ba so la 615.biet so thu hai hon so thu nhat 30 don vi nhung lai kem so thu ba 15 don vi.

  Vay so thu nhat la:

2.Tong cua hai so la 222. biet rang neu cung them vao moi 9 don vi thi so lon se gap doi so be. So lon la:

3.{2012nhan 99-1006nhan 18} nhan 2013=

Tong cua ba so la so lon nhat co ba chu so. Neu lay so thu nhat chia cho so thu hai thi duoc thuong la 5, du 3. So thu nhat hon tong cua hai so kia la 7 don vi. So thu nhat hon so thu hai la ?

tong 3 so la 2010.so thu nhat hon tong hai so kia la 10.neu bot so thu hai di 100 don vi thi duoc so thu ba .tim so thu ba

neu them vao so thu nhat 3 don vi va bot so thu hai di 7 don vi thi so thu nhat lon hon so thu hai 8 don vi .ti so cua hai so la 8/9 tim hai so do 

Tim 2 so biet so thu nhat hon si thu hai la 83 don vi . Mếu them vao so thu nhat 37 don vi thi duoc so moi bang 8/2 so thu 2

ghi ro ket qua loi giai nha

Hai so thap phan co hieu la 17.35.neu them vao so thu hai 0.25 don vi thi so thu nhat se gap 4 lan so thu hai.Tim hai so thap phan do

Tim hai so biet so thu nhat bang 2/5 so thu hai. Biet rang neu them vao so thu nhat 13 don vi va bot o so thu hai di 8 don vi thi hieu cua chung la 6.