\(201.5:\left(\frac{1}{8}+\frac{1}{4}-\frac{1}{2}\right)=201,5:-\frac{1}{8}=\frac{2015}{1000}x\frac{-8}{1}=\frac{16120}{1000}=156.12\)

\(201,5:\frac{1}{8}+201,5:\frac{1}{4}+201,5:\frac{1}{2}\)

\(=201,5.8+201,5.4+201,5.2\)

\(=201,5.\left(8+4+2\right)\)

\(=201,5.14\)

\(=2821\)

k mk nha ! Mà hiểu chấm là nhân nha !

=\(201,5:\left[\frac{1}{8}+\frac{1}{4}+\frac{1}{2}\right]=\frac{1612}{7}\)

Ta có 201,5 x 8 + 201,5 x 4 - 201,5 x 2

201,5 x ( 8 + 4 - 2 ) = 2015

=201,5:(0,125+25%-1/2)=201,5:(-1/8)=-1612

=201,5x(12-3+1)=201,5x10=2015

=201,5 x(12-3+1)

=201,5x1

=2015

201,5 x 12 -201,5 x3+201,5

=201 x 12 -201,5 x 3 +201,5 x1

=201,5 x (12-3+1)

=201,5 x 10

=2015

201.5:0.5+201;5:0,125

= 201,5:(0.5+0.125)

=201.5:0.625

=332.4

201,5 : 0,5 + 201,5 : 0,125

= 201,5 x 2 + 201,5 x 8

= 201,5 x (2+8)

= 201,5 x 10

= 2015

201,5 : 0,5 + 201,5 :0,125

= 201,5 x 2 + 201,5 x 8

= 201,5 x ( 2 + 8 )

= 201,5 x 10

= 2015 

201,5*6,8+201,5*3,2

= 201,5 x ( 6,8 + 3,2 )

= 201,5 x 10

= 2015

201,5 x 6,8 + 201,5 x 3,2

= 201,5x ( 6,8 + 3,2 )

= 201,5 x 10

= 2015

k mk nha

Mk cảm ơn bạn nhiều

Thank you so much

= 201,5 x ( 6,8 + 3,2 )
= 201,5 x 10
= 2015

a. 168x168-168x68

= 168x(168-68)

= 168x100

= 16800

b. 201,5x17-2015x16-201,5

= 201,5x17-201,5x160-201,5

= 201,5x(17-16-1)

= 201,5x0

= 0

c. 1,5 + 1,5x2+1,5x7-10

= 1,5x1+1,5x2+1,5x7-10

= 1,5x(1+2+7)-10

= 1,5x10-10

= 10x(1,5-1)

= 10x0,5

= 5

d. 1,25x2,5x64

= 1,25x64x2,5

=80x2,5

= 200

a)168*168-168*68=168*(168-68)=168*100=16 800

b)201,5*17-2015*16-201,5=201,5*17-201,5*160-201,5=201,5*(17-160-1)=201,5*(-144)=-29016

c)1,5+1,5*2+1,5*7-10=1,5*(1+2+7)-10=1,5*10-10=(1,5-1)*10=0,5*10=5

d)1,25*2,5*64=1,25*2,5*8*8=(1,25*8)*(2,5*8)=10*20=200

201,5 - 36,4 : 2,5 x 0,9

= 201,5 - 14,56 x 0,9

= 201,5 - 13,104

= 188,396

Đáp án A

Ta có: 

201 , 5 - 36 , 4 : 2 , 5 × 0 , 9 = 201 , 5 - 14 , 56 × 0 , 9 = 201 , 5 - 13 , 104 = 188 , 396