\(\frac{25}{4}+\frac{225}{16}:\frac{-3375}{512}\)

\(\frac{25}{4}+\frac{-32}{15}\)

\(=\frac{247}{60}\)

\(\frac{25}{4}+25\times\frac{9}{16}:\left[\frac{125}{64}\times\left(\frac{-27}{8}\right)\right].\)

\(=\frac{25}{4}+25\times\frac{9}{16}:\frac{-3375}{512}\)

\(=\frac{25}{4}+\frac{225}{16}:\frac{-3375}{512}\)

\(=\frac{25}{4}+\frac{-32}{15}\)

\(=\frac{247}{60}\)

a) 125 x 25 x 64

= ( 25 x 64 ) x 125

= 1600 x 125 

= 200 000

b) 125 x 25 x 12 x 14

=  ( 125 x 12 ) x ( 25 x 14 )

= 1500 x 350

= 525000

c) 1300 : 50 = 26

d) 700 : 25 = 28

a, = 125 x (25x64)=125 x 1600= 200 000

b, = (125 x 24) x ( 25 x 12) = 3000 x 300 = 900 000

c, 1300 : 50 = 26

d, 700 : 25 = 28.

125x145x8

=125x8x145 (tính chất giao hoán)

=1000x145

=145000

4400:4:25

=4400:(25x4)

=4400:100

=44

Mong các bạn khác chọn đúng cho mình!

125 x 145 x 8 = ( 125 x 8 ) x 145 = 1000x 145 = 145 000

1: \(5\cdot25\cdot2\cdot16\cdot4=10\cdot25\cdot4\cdot16=10\cdot100\cdot16=16000\)

2: \(25\cdot5\cdot4\cdot2\cdot27\)

\(=25\cdot4\cdot5\cdot2\cdot27\)

\(=100\cdot10\cdot27=27000\)

3: \(2^3\cdot17-2^3\cdot17=2^3\left(17-17\right)=0\)

4: \(58\cdot75+58\cdot50-58\cdot25\)

\(=58\left(75+50-25\right)\)

\(=58\cdot100=5800\)

7: \(5\cdot23+35\cdot41+64\cdot65\)

\(=5\left(23+7\cdot41\right)+64\cdot65\)

\(=5\cdot310+64\cdot65=1550+4160=5710\)

4*125*25+4*175*25=30000

30000

125 + 125 + 125 + 125 - 25 - 25 - 25 - 25

= ( 125 - 25 ) + ( 125 - 25 ) + ( 125 - 25 ) + ( 125 - 25 )

= 100 + 100 + 100 + 100

= 100 x 4 

= 400

= 400 nhé!

h minh nha