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cho 2 so tu nhien co 2 chu so. biet so lon hon so be 16 don vi. ghep 2 so do ben canh nhau ta duoc 2 so co 4 chu so co tong la 5454 . tim so lon
cho 2 so tu nhien co 2 chu so biet so lon hon so be 16 don vi ghep 2 so ben canh nhau ta duoc 2 so co 4 chu so co tong bang 5454
cho 2 so tu nhien co 2 chu so.biet so lon hon so be 16 don vi . ghep 2 so do ben canh nhau ta duoc hai so co 4 chu so bang tong 5454
vay so lon la......
cho 2 stn co 2 chu so . biet so lon hon so be 16 don vi . ghep 2 so ben canh nhau ta duoc 2 so co 4 chu so co tong = 5454. tim so lon
cho 2 so tu nhien co 2 chu so , biet so lon hon so be 16 don vi.ghep 2 so do ben canh nhau ta duoc 2 so co 4 chu so co tong =5454. tim 2 so do
cho 2 so co tong 54 neu gap so nho ben phai so lon va so lon ghep ben phai so nho ta duoc 2 so co 4 chu so hieu chung la 1584 tim 2 so do
tim hai so co tong la 32 .neu lay so lon ghep vao ben phai so be ta duoc mot so co 4 chu so.neu ghep so lon vao ben trai so be ta
co tong cua hai so vua ghep la 1884
Cho so chan co 4 chu so ma tong cac chu so cua no bang 24 . Neu viet so do theo thu tu nguoc lai thi van duoc so da cho . Hay tim so da cho , biet rang nhom 2 chu so ben trai lon hon nhom 2 chu so ben phai la 36 don vi .
tim so tu nhien co 2 chu so,biet rang neu them chu so 1vao giua 2 chu socua so do thi duoc so moi lon hon 7
lan so can tim la 4 don vi