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a, -323 + [(-874) + 564 - 214]
= -323 - 874 + 564 - 214
= - (323 + 874) + (564 - 214)
= - 1197+ 350
= - 847
b, [ 71 + (-59) - (-83 - (95)]
= 71 - 59 + 83 + 95
= 12 + 178
= 190
![](https://rs.olm.vn/images/avt/0.png?1311)
a,[461+(-78)+40]+(-401)
=461+(-78)+40+(-401)
=[461+(-401)+40]+(-78)
=100 +(-78)
=22
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a) [461 + (-78) + 40] + (-461)
= 461 + (-78) + 40 + (-461)
= [461 + (-461)] + (-78) + 40
= -38
b) [(-59) + 71] - (-83) - (-95)
= (-59) + 71 + 83 + 95
= 190
![](https://rs.olm.vn/images/avt/0.png?1311)
577+[(-99)+41]+(-618)
577+[-58]+(-618)
577+(-676)
-99
[71+(-59)]-[-83-(-95)]
71-59+83+95
12+83+95
95+95
190
![](https://rs.olm.vn/images/avt/0.png?1311)
a, = 53 - 76 - ( -76 + 53 ) = 53 - 76 + 76 - 53 = 0
b, = ( -59 + 71 ) - ( -83 + 95 ) = -59 + 71 + 83 - 95 = 0
c, = ( 3758 - 3759 ) + ( 57 - 66 ) = ( -1 ) + ( -9 ) = -10
tick
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a: \(\left[\left(-59\right)+71\right]-\left[\left(-83\right)-\left(-95\right)\right]\)
\(=\left[71-59\right]-\left[-83+95\right]\)
=12-12
=0
b: \(\left(435-167-89\right)-\left(435-89\right)\)
\(=435-167-89-435+89\)
\(=\left(435-435\right)+\left(89-89\right)-167\)
=0+0-167
=-167
c: \(\left(-624\right)-\left[\left(376+245\right)-45\right]\)
\(=\left(-624\right)-\left[376+245-45\right]\)
\(=\left(-624\right)-376-200\)
=-1000-200
=-1200
[(-59)+71]-[-83-(-95)
=12-12
=0
[(-59) + 71] - [-83 -(-95)]
= 12 - 12
=0