\(185:0,25+185\) x \(95+185\)

\(=185\) x \(4+185\) x \(95+185\) x \(1\)

\(=185\) x \(\left(4+95+1\right)\)

\(=185\) x \(100=18500\)

haizz 
mk củng ko biết

TL:

\(120.\frac{185}{74}\)

\(=\frac{22200}{74}=300\)

125 : \(x\) = 2² - (-1)

125 : \(x\) = 4 + 1

125 : \(x\) = 5

        \(x\) = 125 : 5

       \(x\)  = 25

18 - (\(x\) + 14) : 3 = 27

      (\(x\) + 14) : 3 = 18 - 27

      (\(x\) + 14) : 3 = - 9

      \(x\) + 14         = - 9.3

       \(x\) + 14       = -27

       \(x\)               = -27 - 14

        \(x\)              = - 41

2^\(2x\) - mũ 3 là sao em?    = 32

 = 1,85 x (27+9+100 :0,25 -0,1x500+10) = 

A ) 1,85 x 27 + 1,85 x 9 + 185: 0,25 - 0,185 x 500 + 18,5 

= 1,85 x 27 + 1,85 x 9  + 1,85 x 100 x 4 - 1,85 : 10 x 500 + 1,85 x 10 

= 1,85 x 27 + 1,85 x 9 + 1,85 x 100 x 4 + 1,85 x 10   - 1,85 x 50  

= 1,85 x 27 + 1,85 x 9 + 1,85 x 400 + 1,85 x 10 - 1,85 x 50 

= 1,85 x ( 27 + 9 + 400 + 10 - 50 ) 

= 1,85 x 396 

= 732,6

mk k chắc nha

a) \(30\times1235\times4-8\times235\times15\)

\(=120\times1235-120\times235\)

\(=120\times\left(1235-235\right)\)

\(=120\times1000\)

\(=120000\)

b) \(\left(120\times99+120\right)-185\times101+185\)

\(=120\times\left(99+1\right)-185\cdot\left(101-1\right)\)

\(=120\times100-185\times100\)

\(=12000-18500\)

\(=-6500\)

a) 30 x 1235 x 4 - 8 x 235 x 15

=(30x4) x 1235 - (8x15)x235

= 120 x 1235 - 120 x 235

=120 x (1235-235)

=120 x 1000

=120000

b) ( 120 x 99 +120)  - 185 x 101-185

=(120 x 99 + 120) - (185x101+185)

=120x(99+1) - 185x(101+1)

=120 x 100-185x102

=12000-18870

= -(18870-12000)

= -6870

\(\left|-312\right|+\left(-185\right)+\left(-512\right)+\left|-185\right|\)

\(=312-185-512+185\)

\(=185-185-512+312\)

\(=\left(185-185\right)-\left(512-312\right)\)

\(=0-200\)

\(=-200\)

các bạn hãy giúp mình

185000 nha

7263 x 185 - 185 x 6263 = (7263 - 6263) x 185

                                    = 1 000 x 185

                                    = 185 000

~Học tốt~

185 x 99 + 15 x 49 + 185 x 1 + 15 x 51 =

185 x ( 99 + 1 ) + 15  x (51 + 49) =

185 x 100 + 15 x 100 = 

100 x  (185 + 15) = 

100 x 200 = 20 000

=185x(99+1)+15x(49+51)

=185x100+15x100

=(185+15)x100

=200x100

=20000

185 x 99 + 15 x 49 + 185 x 1 + 15 x 51 =

185 x ( 99 + 1 ) + 15  x (51 + 49) =

185 x 100 + 15 x 100 = 

100 x  (185 + 15) = 

100 x 200 = 20 000