13-12=
Ai k mk mk k lai
12-12=
Ai k mk , mk k lai
12 - 12
= 12 . 1 - 12 .1
= 12 . ( 1- 1 )
= 12 . 0
= 0
12*2=???
ai k mk mk k lai
Số cần tìm là :
12 * 2 = 24
Đáp số : 24
tim x
4-(27-3)=x-(13-4)
ai k mk rui mk k lai
4-(27-3)=x-(13-4)
4-27+3=x-13+4
4-24=x-9
-20=x-9
x=-20+9
x=-11
\(x+12-45=78\)
kb với mk nha
ai k mk mk mk k lai
x + 12 - 45 = 78
x + 12 = 78 + 45
x + 12 = 123
x = 123 - 12
x = 111
Vậy x = 111
x+12-45=78
x+12 =78+45
x+12 = 123
x =123-12
x 111
1+1000000000000000000000000
ai k mk mk k lai
ai nhanh mk k
1 + 1000000000000000000000000000 =1000....00001
1+1000000000000000000000000=1000000000000000000000001
1+10=?
nhanh mk k ai k mk mk k lai
\(9^2\)\(=.................\)
\(13^2\)\(=.............\)
ai k mk mk k lai
><
\(9^2=81\) \(13^2=169\)
k mk nha mina~~~~~~~~~~
190 - 35 =...
Ai k mk , mk k lai
190 - 35
= 155
Tk
Cho
Mk
Nhá
Chúc bn hk giỏi
----------
...................^^
22*2=???
ai k mk mk k lai