<=>345.24+176.24+176.76+345.176

<=>176.(24+76)+345.(24+176)

<=>176.100+345.200

<=>17600+69000

=86600

a) ( - 5) . (- 345) = 1725

b) 49.|-76| = 49 . 76 = 3724

c) |-26|.|-32| = 26 . 32 = 832

d)   − 15 2 =   ( - 15 ) .   ( - 15 )   =   225

a)(167+35)+(134-167-35)    b)(43-31+57)-(243-345+54)      c)(89-76)+(76-89+28)     d)(243+46-345)-(243-345+54)

=167+35+134-167-35          =43-31+51-43+345-54           =89-76+76-89+28          =243+46-345-243+345-54

=167-167+35-35+134          =12+51-43+345-54               =0+28                           =289-345-243+345-54

=0+0+134                          =63-43+291                         =28                               =(-56)-243+345-54

=134                                 =20+291=311                                                            =(-299)+345-54

                                                                                                                        =46-54=-8

=-76+153+176-153

=(-76+176) +153-153

=100

[ - 76+153 ] - [-176+153] 

= ( - 76 + 176 ) + 153 - 153

= 100 + 0

= 100

\(\left(57-289\right)-\left(76-289\right)+\left(176+43\right)\)

\(=\) \(\left(-232\right)\) \(-\) \(\left(-213\right)\) \(+\) \(219\)

\(=\) \(\left(-19\right)+219\)

\(=200\)

(57 - 289 ) - ( 76 - 289 ) + ( 176 + 43 )

= 57 - 289 - 76 +289 +176 +43

= (57 + 43 ) + ( -289 +289 ) + ( - 76 + 176 )

= 100 +100

=200

help my

a; 2³.17 + 2³.83 - 14

= 2³.(17 + 83) - 14

= 8.100 - 14

= 800 - 14

= 786 

b; -176 + 197 - (-76 + 97)

= -176 + 197 + 76 - 97

= -(176 - 76) + (197 - 97)

= - 100 + 100

= 0 

c; 2022 - [45 - (6 - 1)² ] + 2021⁰

= 2022 - [45 - 5²] + 1

= 2022 + 1 - [45 - 25] 

= 2023 - 20

= 2003

[ 153 + ( -76 )] - [ -176 - ( -152 )]

= ( 153 - 76 ) - ( -176 + 152 )

= 77 - ( -24 )

= 77 + 24

= 101

[153+(-76)]-[-176-(-152)]

=77 +24 =101

(-1998)*(1-345)-345*1998

=-1998(1-345+345)

=-1998.1

=-1998

cảm ơn bạn

a ) 2 1 5 + 3 4 5 = 2 + 3 + 1 5 + 4 5 = 6

b ) 4 1 2 + 3 4 5 = 4 + 3 + 1 2 + 4 5 = 7 + 13 10 = 8 3 10