Tính nhanh giúp mik nhé

a: =-64x71+32x42

=-64x50=-3200

-3629

-4³. 71+ 32 . 29 - 13. (- 32)=-3200

-64.71+32.29-13.(-32)

=(71+29).(64-13).32-(-32)

=100.51.0

=5100.0

=0

trả lời rõ cách làm dùng mình đi

\(=71.32.2+32.\left(-7\right)-13.32\)

\(=32.\left[71.2.\left(-7\right).\left(-13\right)\right]\)

\(=32.12922\)

\(=413504\)

:)

Tham Khảo:

https://hoc24.vn/cau-hoi/tinh-hop-lia-71-64-32-7-13-32.3060152037311

Sửa câu b :

\(b,300:4+300:6-25\\ =75+50-25\\ =125-25\\ =100\)

\(a,\left(4+32+6\right)+\left(10-32-2\right)\\ =\left(10+32\right)+\left(10-32-2\right)\\ =10+32+10-32-2\\ =20-2\\ =18\\ b,300:4+300:6-25\\ =300:\left(4+6\right)-25\\ =300:10-25\\ =30-25\\ =5\\ c,17.\left[29-\left(-111\right)\right]+29.\left(-17\right)\\ =17.\left(29+111\right)+29.\left(-1\right).17\\ =17.\left(29+111-29\right)\\ =17.111=1887\\ d,19.43+\left(-20\right).43-\left(-40\right)\\ =19.43+\left(-20\right).43+40\\ =43.\left(19-20\right)+40\\ =-43+40\\ =-3\)

\(|-19|+\left[\left(-19\right)+|71|+43\right]-\left(43-29-13\right)\)

\(=19+\left(19+71+43\right)-\left(43-29-13\right)\)

Phá ngoặc \(=19+19+71+43-43+20+13\)

\(=\left(19+71\right)+\left(19+20+13\right)+\left(43-43\right)\)

\(=90+52+0=142\)

|19| + [(-19) + |71| + 43] - (43 - 29 - 13)
= 19 + [(-19) + 71 + 43] - 43 + 29 + 13 (Quy tắc phá ngoặc)
= 19 + [52 + 43] - 43 + 29 + 12
= 19 + 95 - 43 + 29 + 12
= 114 - 43 + 29 + 12
= 71 + 29 + 12
= 100 + 12
= 112