tong 2 so thap phan la 16,26 neu tang so thu nhat len 5 lan so thu hai len 2 lan tong moi bang 43,2 tim so do [nho ghi ro cach tinh]
tong cua 2 so la 9
neu :
so lon + 0,4
so be - 0,4
thi :
so be bang 2/3 s lon
tim hai so
moi nguoi viet cach giai cho minh luon nhe
help me ^^
tong cua hai so la 14,2 neu gặp so lon 3 va gặp so be len 2 lan thi tong 2 so la 33,3 tim hai so do
tong 2 so la 34,4 neu gap so lon len 5 lan so be len 3lan thi duoc tong moi la 141,2 tim 2 so do
tong cua 2 so la 175 , 2 biet so thu nhat nhan 0,9 , so thu 2 nhan 1,5 thi ra ket qua bang nhau . Tim hai so do ?
goi y : stn la 149 ,5
st2 la : 65 ,7
nho co cach lam
tong 2 so la 34,4 neu gap so lon len 5 lan so be len 3 lan thi duoc tong moi la 141,2 tim 2 so do
tong 2 so thap phan la 16,26.Neu tang so thu nhat len 5 lan so thu 2 len 2 lan thi tong moi la 43,2 tim 2 so do
tong cua hai so la 12 neu them chu so 3 vao ben phai cua 1 so thi tong moi la 51 tim hai so do (nho ghi cach giai ro rang ra nhe)
tong 2 so la 176.Neu bot chu so 0 o ben phai so hang thu hai , thi tong moi cua 2 so la 68 . Tim hai so do