=(-37).520+260.(-16)-90.(-160)

=(-37).2.260+260.(-16)-90.(-160)

=(-74).260+260.(-16)-90.(-160)

=260.[(-74)+(-16)]-90.(-160)

=260.(-90)-90.(-160)

=(-260).90+90.160

=90.(-260+160)

=90.(-100)

=-9000

a) 45.37 + 45.63 - 100

\( 45.(37 + 63) – 100 \)

\(45.100 – 100\)

 \(100.(45 – 1) \)

\( 100 . 44 = 4400\)

a,-9

b,116.42

c,300

d,21

a)\(=45.\left(37+63-\dfrac{20}{9}\right)=45\cdot\dfrac{880}{9}=4400\)

b)\(=148.9-9.48=9.\left(148-48\right)=9.100=900\)

a) \(\left(-5\right)^3.\left(-19\right).32.\left(-2018\right)^0\)

\(=\left(-125\right).\left(-608\right).1\)

\(=76000\)

b) \(\left(-195\right).56-43.195-195\)

\(=195.\left(-56-43-1\right)\)

\(=195.\left(-100\right)\)

\(=-19500\)

c) \(\left(-37\right).520+\left(-260\right).16-90-\left(-160\right)\)

\(=-19240+4160-90+160\)

\(=-15010\)

a, ( -5 )³ . ( -19 ) . 32 . ( -2018 )⁰

= -125 . ( -19 ) . 32 . 1

= 2375 . 32 . 1

= 76000

b, -195 . 56 - 43 . 195 - 195

= -10920 - 8385 - 195

= 2523 - 195

= 2340

\(\frac{13}{90}\)+ \(\frac{1}{4}\)+ \(\frac{77}{90}\)

= \(\left(\frac{13}{90}+\frac{77}{90}\right)+\frac{1}{4}\)

= 1 + \(\frac{1}{4}\)

= \(\frac{5}{4}\)

a )  13/90 + 1/4 + 77/90                                       

= ( 13/90 + 77/90 ) + 1/4 

=   90/90 + 1/4 

= 1 + 1/4 

= 5/4 

b )        16/81 + 5/13 + 65/ 81 + 8/13 

       =  ( 16/81 + 65/81 ) + ( 5/13+8/13 ) 

       =           81/81         + 13/13 

       =             1 + 1 

       =  2 

Chắc 100% 

cảm ơn các bạn nha

-37.520+(-260).16-90.(-160)=-19240+-4160-(-14400)=-9000

\(a.-37.520+\left(-260\right).16-90.\left(-160\right)\)

\(=-19240+\left(-4160\right)-\left(-14400\right)\)

\(=-23400-\left(-14400\right)\)

\(=-9000\)

\(b.-\left(5\right)^5.\left(-19\right).32.\left(-2016\right)^2\)

\(=-3125.\left(-19\right).32.4064256\)

\(=59375.32.4064256\)

\(=1900000.4064256\)

\(=7722086400000\)

~ Học tốt ~