mot can chua 5,5 lit dau nang 5,7 kg ( neu can khong chua dau can nang 1,3 kg ) .Hoi neu can do chua 3,5 l dau thi nang bao nhieu ki - lo gam
ghi ca cach lam luon nha
tim phan so a/b biet rang neu them 9 vao tu so va them 15 vao mau so thi gia tri cua phan so khong thay doi
giai thich cach lam ho minh luon nha
250 m= ....... km . ghi cach lam luon nha
Tim so ca hai chu so biet so do gap 21 lan hieu cua chu so hang chuc va hang don vi GIAI Cach Lam Luon cho Minh nha
tong 2 so la 128 ti so 2 so la 0.28 tim 2 so do (neu cach lam luon) ><
cac ban lam ra luon nhe lam cach lam
90phut = gio
noi cho minh cach tinh luon nha ai lam truoc la minh tick minh danh lon
minh khong gioi ve khoang nay!
3(x-9)+15)=12+243:8
Ai biet thi chi minh nha ! Nho chi luon cach lam nha!~~~~~~~~~
35 phut = gio
coi cho minh cach tinh luon nha ai ma lam truoc thi minh tick