do cac thanh lam dc bai toan nay ma ko dung may tinh.(ghi ro cach lam)

9/3(6*4/8)

neu xen vao giua cac so cua mot so co hai chu so chinh so do ta duoc so moi co bon chu so gap 99 lan so ban dau.tinh so bn dau

=>CAC BN LAM ON GHI RO CACH GIAI,AI NHANH DUNG NHAT MK TICK 

Thuc hien cac phep tinh

A,5⁶:5⁴+2³×2²-1²⁰¹⁷

^{ghi cach lam , loi giai ra nhe,trinh bay ro ra nhe!! Thank pho watching}

Bai 9:

a.400+500+8/10     

b.55+9/10+6/100

moi nguoi ghi ro cach lam ra nhe thanks moi nguoi

de bai tinh gia tri bieu thuc sau mot cach hop li (ghi ro tinh chat da ap dung)

 A=6/19 .  - 7/11 + 6/19 . -4/11 + -13/19

B=5/7 . -4/13 +5/7 .7/13 - 5/13 . 3/7

lam het mik cho 1 like nha ai dung mik se kb va cho like nha cac ban

hieu hai so la 4,2.neu so lon tang 5 lan va giu nguyen so be thi duoc hieu moi la 43,2.tim so be

cac bn ghi day du cach nha,ai lam nhanh ma dung nhat mk tick

trong hai so sau so nao lon hon 3^54 va 2^81

bai nay trong quyen toan nang cao va cac chuyen de toan 6 nha cac ban

cac ban nho ghi ro cach lam ra nhe

tim x thuoc Z biet:

|x-5|+x+3=16

|x-4|>x+2

||x+5|-4|=3

Cach lam nua nhe

minh chua biet cach lam,cac ban phaiviet cach lam vao minh moi tick

ko bat buoc lam tat ca cac cau