(21 + 32) - (-12 + 32)

= 21 + 32 + 12 - 32

= (32 - 32) + (21 + 12)

= 0 + 33

= 33

- ( 21 + 32 ) - ( - 12 + 32 )

= ( - 21 ) + 32 - ( - 12 ) - 32

= ( - 21 ) + 32 + 12 - 32

= 11 + 12 - 32

= 23 - 32

= - 9.

\(32-\left(2^2.3,14\right)-\left(2^2.3,14\right)\)

\(=32-2\left(2^2.3,14\right)\)

\(=32-2.2^2.3,14\)

\(=32-12,56\)

\(=19,44\)

\(32-\left(2^2.3,14\right)-\left(2^2.3,14\right)\)

\(=32-12,56-12,56\)

\(=19,44-12,56\)

\(=6,88\)

HOK TOT

10 - [12 - (-9 - 1)]

= 10 - 12 + (-9) - 1

= (-2) + (-9) - 1

= (-11) - 1

= (-12)

10-12+9+1

=-2+9+1

=7+1

=8

10-[12-(-9-1)]

=10-12-9-1

=-2-9-1

=-12

\(7,1+\left(-5,25\right)-\left(-2,25+7,1\right)\)

\(=7,1-5,25+2,25-7,1\)

\(=\left(7,1-7,1\right)-\left(5,25-2,25\right)\)

\(=0+3\)

\(=3\)

Ủng hộ mk nha ^_-

(2 * 17,5 - 2015) - (-2015+ 17,5 *2)  -14

= 2*17,5   - 2015 +2015 -  17,5 *2 -14

=0-14

=-14 

đung roi

18+29+158-18-29

=(18-18)+(29-29)+

=158

@kien đúng rùi

xin loi minh ko biet

xin loi minh ko biet

xin loi minh ko biet

ko bik

kobik

kobik

ko bik

ko bik

ko bik

ko bik

ket qua = 379 ban nha

-144-[29-144+149]

=-144-29+144-149

=(-144+144)+(-29-149)

=    0         +     (-178)

=-178

-7264 + [1543 + 7264]

= -7264 + 1543 + 7264

= (7264 - 7264) + 1543

= 0 + 1543

= 1543

mik nhah nhất đó

-7264+[1543+7264]=1543

AI K MÌNH K LẠI MÌNH ĐANG BỊ ÂM RẤT NHIỀU HUUHUHUHHUUHU

= 1543