-2002-(57-2002) = -2002-57+2002=-57

(–2002) – (57 – 2002)

= –2002 – 57 + 2002

= 2002 – 2002 – 57

= 0 – 57 = –57.

a) \(\left(2736-75\right)-2736.\)

\(=\left(2736-2736\right)-75.\)

\(=0-75=-75.\)

Vậy..........

b) \(-2002-\left(57-2002\right).\)

\(=-2002-57+2002.\)

\(=\left(-2002+2002\right)-57.\)

\(=0-57=-57.\)

Vậy..........

(2736-75)-2736= 2736-75-2736

= (2736-2736)-75

= 0-75

= -75

(-2002)-(57-2002)= -2002-57+2002

= (-2002+2002)-57

= 0-57

= -57

a)(2736-75)-2736=(2736-3736) - 75

=0-75

=-75                        

b)(-2002)-(57-2002)=(-2002-2002)-57

=-4004-57

=-3947

a) (2736-75)-2736                      

= 2736-75-2736

=(2736-2736)-75

=0-75

=-75

b)(-2002)-(57-2002)

=2002-57-2002

=(2002-2002)-57

=0-57

=-57

(2002)-(57-2002)

=2002-2002-57

=0-57

=-57

Ai k mình mình lại

(2002)-(57-2002)

=2002-57+2002

=(2002-2002) + 57

=0 + 57

= 57

đs:3947

a)(2736-75)-2796

=(2736-2796)-75

=-60-75

=-135

b)(-2002)-(57-2002)

=(-2002)-(-1945)

=-2002+1945

=-57

tick cho mk nha bạn

=(2736-2796)-75

=-60-75

=-135

b)(-2002)-(57-2002)

=(-2002)-(-1945)

=-2002+1945

=-57

a,(2736 -75) -2796

=(2736-2796)-75

=-60-75

=-135

b)(-2002)-(57-2002)

=(-2002)-(-1945)

=-2002+1945

=-57

a) -75

b) -57

a)  (2736-75)-2736

= (2736-2736)-75

=0-75=-75

b) (-2002)-(57-2002)

=(-2002)-57+2002

=((-2002)+2002)-57

=0-57=-57

a, (2736-75)-2736

=2736-75-2736

=(2736-2736)-75

=0-75

=-75

b, (-2002)-(57-2002)

=[(-2002)-(-2002)]-57

=0-57

=-57

ai k mk rui mk k lai

a) (2736 - 75) - 2736

= 2736 - 75 - 2736

= (2736 - 2736) - 75

= 0 - 75

= -75

b) (-2002) - (57 - 2002)

= -2002 - 57 + 2002

= (-2002 + 2002) - 57

= 0 - 57

= -57

a)(2736-2736)-72

=0-72

=-72

b)(-2002)-(57-2002)

=(-2002+2002)-57

=0-57

=-57