viet them 3 so hang vao moi day so sau
1;2;3;4;8;32;...;...;...
1/2;3/5;8/13;21/34;...;...;...
ca cach giai nhe
a , hay viet 55 thanh tong cua cac so tu nhien lien tiep
b,1 day pho co 15 nha duoc danh la day le lien tiep.tong cua 15 so nha la 915 .Tim so nha dau tien va so nha cuoi cung
c, cho day so co 11 so hang co tong = 176. biet hieu cua so dau va so cuoi la 30 . hay viet day so do
d,1 day so tu nhien cach deu co tan cung la 2 . Cac so deu chia het cho 4 . Tim so thu 112 cua day roi tinh tong biet so dau tien la so nho nhat co 3 chu so
giai ho minh nhe,thank you.
tim mot so co 3 chu so biet neu viet them chu so 1 vao ben phai so do ta duoc so moi gap 3 lan so co duoc bang cach viet them chu so 2 vao ben tri so do
nho giai het ra cho to nhe
2.
1+2=3
4+5+6=7+8
9+10+11+12=13+14+15.
........
tim so cuoi cung tren hang thu 99 cua day,neu viet tiep theo mau tren.
giai giup minh nhe cac ban dep trai dep gai hoc gioi oi cam on anh chi ban be.
Tim so tu nhien co 3 chu so, biet rang neu viet them 1 chu so 0 vao giua chu so hang tram va hang chuc cua so do thi ta duoc so moi gap 6 lan so do.
Cac ban giai giup minh nhe!!!!!!!!!!!!!!!
mot hoc sinh viet 1 2 3 4 5 6 7 1 2 3 4 5 6 7...va tiep tuc nhu vay de co mot day so so hang thu 2008 ma ban day viet la so nao
1.viet so tu nhien nho nhat co tong cac chu so bang 38?
2.mot phep chia hai so tu nhien co thuong la 6 va so du la 33.tim so bi chia,so chia,biet rang tong cua so bi chia,so chia,thuong va so du bang 695.
3.trung binh cong cua 3 so le lien tiep bang 299.tim so lon nhat trong 3 so do?
4.cho phan so a/b.rut gon so phan so a/b ta duoc phan so 5/7.neu them 71 don vi vao tu so va giu nguyen mau so,ta duoc phan so co gia tri bang 18/11.tim phan so a/b?
5.tim y biet:a=(2/11*13+2/13*5+2/15*17+2/17*19+2/19*21)*462-y=19
cac ban giai chi tiet gium minh nhe,ban nao giai duoc minh cho ***** lun
1 hinh thang co tong do dai 2 day la 42 cm,chieu cao bang day be , day be bang 3 phan 4 day lon . tinh dien tich hinh thang
mong cac ban hay giai cho minh ma hay co loi giai phep tinh va dap so nhe ban nao giup minh thi minh thich ca
Cho 4 chu so 2 va cac phep tinh , hay lap ra day tinh co ket qua lan luot la 1 2 3 4 5 6 7 8 9 10
Có ai nhanh nhất mình sẽ tik cho nhanh len nhe 😔😔😔😔