ai ma cha biet vi mik tao ra thi chac 100% la ko noi dau vi tui se ko tiet lo la 1 dau hihi
Các câu hỏi tương tự
Khong dung may tinh bo tui .Rut gon roi quy dong cac phan so sau
a)\(\frac{17}{20},\frac{13}{15}va\frac{41}{60}\)
b)\(\frac{25}{75},\frac{17}{34}va\frac{121}{132}\)
bon ban gop tien mua chung mot chiec may tinh bo tui. ban An gop 1/2 tong so tien cua ba ban khac.ban Bình góp 1/3 tong so tien cua 3 ban khac.ban Cuong gop 1/4 tong so tien cua ba ban khac.con ban Dung gop 15600đ.hoi gia tien cua chiec may tinh bo tui va so tien cua moi nguoi
khong thuc hien phep tinh hay so sanh
A=35.53-18
B=35+53.34
giup minh nhanh nhe ai dung minh tick
so lieu cua ngang giao duc va dao tao nam hoc 1998-1999 cho biet :Ca nuoc ta co 5564888 hs THCS,trng doco 2968868 hs nam.DUng may tinh bo tui de tinh ti so phan tram cua hs nam va cua so hs nu so voi tong so hs THCS
khong dung may tinh hay so sanh
A 2011^2010+1/2011^2011+1
Tren nua mat phang bo chua tia Ox ve xOz=35 do, xOy=70 do
a.Tia nao nam giua 2 tia con lai? Vi sao
b.Tinh zOy?
c. Tia Oz co phai tia phan giac cua goc xOy khong? Vi sao?
d.Goi Om la tia phan giac cua goc xOz. Tinh mOy?
e.Goi Ot la tia doi cua tia Ox. Tinh tOy?
giup minh zoi may ban
tren cung nua mat phang bo chua tia Ox , ve tia Oy va Oz sao cho xoy = 80 do , xoz = 130 do
a/ tinh so do goc yOz
b/ goi Ox' la tia doi cua yia Ox . tinh so do goc zOx'
c/ tia Oz co la tia phan giac cua xO'y khong ? giai thich ?
nobita kun giup minh duoc khong
(135-7)×5-135×5+35
Tinh nhanh
tinh nhanh
214+[120-(214+120)]
(-321)-[(-321+35)-235]
bo dau ngoac roi tinh
(18+29)+(158-29-18)
(13-135+49)-(13+49
tinh
25+(-13+8)
7+(-12+43)-[2+(19-34)]
giup mk ti nha cac bn ;;;;;;bn nao lm xong nhanh mk tich cho nha 5p nhe!