tổng 658
lớn 579
bé 79
trả lời đầu tiên bấm mình liền
tổng 658
lớn 579
bé 79
trả lời đầu tiên bấm mình liền
trung binh cong cua 2 so la 117 tim 2 so do biet rang neu viet them chu so 1 vao ben trai so be thi duoc so lon tim
trung binh cong cua hai so tu nhien bang 1486.Biet neu viet them chu so 1 vao truoc so be ta duoc so lon .tim so be
cho 2 so tu nhien co trung binh cong cua 2 so tu nhien = 1485 biet neu viet them chu so 1 vao ben trai so be ta duoc so lon tim so be
cho 1 so co 2 chu so va 1 so co 3 chu so .ti so cua 2 so do la 3/7.Tim 2 so do,biet rang neu viet them chu so 1 va ben phai so be thi duoc so lon
cho hai so tu nhien co trung binh cong cua hai so tu nhien bang 1485 va biet neu viet them chu so 1 vao ben trai so be ta duoc so lon . tim so be
Trung binh cong cua hai so la 963. Neu viet them chu so 1vao ben rai so be ta duoc so be. Tim so lon
trung bing cong cua 2 so tu nhien la 963.neu viet them chu so 1 va ban trai so be thi duoc so lon . tim so lon
1.tim so bi chia trong phep chia cho 12 co thuong la 35 va so du la so le co 2chu so
2.hieu cua so lon nhat co 4 chu so khac nhau va so nho nhat co 4 chu sola bao nhieu
3.mot hinh chu nhat co chieu dai gap ruoi chieu rong. Neu moi chieu tang them 1m thi duoc hinh chu nhat moi co dien tich tang them 26m2. Tinh chu vi hinh chu nhat
4.trung binh cong cua 2 phan so bang 5/12. Phan so thu nhat hon phan so thu hai 1/6. Tim phan so thu nhat
5.tim y biet (5/7 - y) nhan 4/5 =7/10 + 1/2
6.hieu 2 so =1/3 so be.Tong 2 so la 63. Tim so be
trung binh cong cua hai so la 963. Neu viet them chu so 1 vao ben trai so be ta duoc so lon. Tim so lon