58.75-58.50-58.25=58(75-50-25)=58.0=0

58.75 - 58.50 - 58.25=58.(75-50-25)=58.0=0

58.75+58.50-58.25

=58.(75+50-25)

=58.100

=5800

Tích mình nhé!

20:2^2 -5^9:5^8

58.75+58.50-58.5

=58.(75+50-5)

=58.120

=6960

_Hok tốt_

\(=58.\left(75+50-5\right)\)

\(=58.120\)

\(=6960\)

58.75+58.50-58.5

=58.(75+50-5)

=58.120

=6960

Hok_Tốt

\(A=8\cdot17\cdot125=\left(125\cdot8\right)\cdot17=1000\cdot17=17000\)

\(B=\left(25\cdot4\right)\cdot37=100\cdot37=3700\)

\(C=\left(75+50-25\right)\cdot58=100\cdot58=5800\)

\(D=\left(39+63-2\right)\cdot27=100\cdot27=2700\)

A=8.17.125= (8.125).17= 1000.17=17000

b=4.37.25=(4.25).37=100.37=3700

c= 58.75+58.50-58.25= 58.(75+50 - 25)= 58.100=5800

d=27.39+27.63-2.27= 27.(39+63-2)=27.100=2700

=58.(75+50-25)=58.100=5800

58.75+58.50-58.25

=58.(75+50-25)

=58.100=5800

58.75+58.50-58.25=58.(75+50-25)=58.100=5800

a 58 x 75 + 58 x50 - 58 x25

= 58 x { 75 + 50 -25}

=58 x 100 

=5800

27 x 121 - 87 x27 +73x34

=27 x { 121 - 87 } + 73 x 34

=27 x 34 + 73 x34

= 34x { 27 + 37}

=27 x100

=2700

Cảm ơn các bạn nhiều

a) 58.75+58.50-58.25

= 58.(75+25-50)

= 58.50

= 2900

b) 27.121-87.27+73.34

= 27.(121-87)+73.34

= 27.34+73.34

= 34.(27+73)

= 34.100

= 3400

k mình nha

= 5800

tick mình nha Đinh Minh Phong!

5800 nhé bạn
Ht

=58x{75+50-25}=58x100=5800

\(58.75+58.50+58.25=58.\left(75+50+25\right)=58.150=8700\)

= 58. ( 75+50+25)

= 58. 150 = 8700

đúng ko