-1911-(1234-1911)
-1911-1234+1911
(-1911+1911)-1234
0 - 1234
-1234
= -1911-1234+1911
=(-1911+1911)-1234
=0-1234
=-1234
\(-1911-\left(1234-1911\right)\)
\(=-1911-1234+1911\)
\(=\left(-1911+1911\right)-1234\)
\(=0-1234\)
\(=-1234\)
-1911-(1234-1911)
-1911-1234+1911
(-1911+1911)-1234
0 - 1234
-1234
= -1911-1234+1911
=(-1911+1911)-1234
=0-1234
=-1234
\(-1911-\left(1234-1911\right)\)
\(=-1911-1234+1911\)
\(=\left(-1911+1911\right)-1234\)
\(=0-1234\)
\(=-1234\)
-1911-(1234-1911)
b) -1911 - ( 1234 - 1911)
c) -15 .29 + 71.(-15)
d) 156 . 72 + 28.156
tính hợp lí
-1911-(1234-1911)
32.(-39)+16.(-22)
Tính :
a) 27.( 13 - 16 ) - 16.( 13 - 27 )
b) -1911 - ( 1234 - 1911 )
Ai k mk mk k lại, ^_^
Tinh bang cach hop li
5956x500+458x500+3568x500=
-1911-(1234-1911)
156.72+28.156
32.(-39)+16.(-22)
-1945-(567-1945)
184.33+67.184
44.(-36)+22.(-28)
tinh bang cach hop li
-1+6+(-11)+16+...+996+(-1001)
Tinh bang cach hop li
7/13×5/14×39/15
tinh gia tri bieu thuc bang cach hop li nhat b=1.3.5...............2011.2013/1008.1009..............2014