tính nhanh : -168+(+72).(-168)+(-168).(+27)
a/(-168)+72.(-168)+(-168).27
(-168)+72.(-168)+(-168).27=(-168).1+(-168).72+(-168).27=(-168).(1+72+27)=(-168).100=(-16800)
a/ (-168)+ 72.(-168)+(-168).27
(-168)+72.(-168)+(-168).27
=-168.(1+72+27)
=-168.100
=-16800
(-168)+72.(-168)+(-168).27
=(-168).(72+27+1)
=(-168).100
=-16800
a, ( - 168 ) + 72.( - 168 ) + ( - 168 ).27
= ( -168 ) . ( 1 + 72 + 27 )
= ( - 168 ) . 100
= - 16800
(-168)+72.(-168)+(-168).27
(-168) + 72.(-168) + (-168).27
= (-168).(1+72+27)
= (-168).100
= -16800
(-168)+72.(-168)+(-168).27
\((-168)+72.(-168)+(-168).27 =(-168).1+72.(-168)+(-168).27 =(-168).(1+72+27) =(-168).100 = -16800\)
(-168)+72.(-168)+(-168).27=(-168).1+(-168).72+(-168).27=(-168).(1+72+27)=(-168).100=(-16800)
(-168)+(-72).168+(-168).27
-168+(-72).168+(-168).27
=-168.1+(-72).168+(-168).27
=-168.1+72.(-168)+(-168).27
=-168(1+72+27)
=-168.100
=-16800
li-ke nha!!!~♥
= -168+72. (-168)+(-168).27
=-168 .(72+27+1)
=-168 . 100
=-16800
Tinh Hop ly:
a. (-12)*(-125)*(+17)
b. (-168)+(+72)*(-168)+(-168)*(+27)
c. 48* (-21) + (142)*(-24)
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tính nhanh 168×168-168×58/110
\(=\dfrac{168\times\left(168-58\right)}{110}=\dfrac{168\times110}{110}=168\)
`@V.Tr.V`
`@`NeolOvO
\(\dfrac{168\text{×}169-168\text{×}58}{110}=\dfrac{168\text{×}\left(168-58\right)}{110}=\dfrac{168\text{×}110}{110}=168\)
Tính nhanh
a) -(168+325)+(168+425)
b) (38-276)+(38-65+276)
c)(269+135)+(-327-169)-(135-27)
d)271-[(-43)+271-(-17)
a,-(168+325) + ( 168 + 425 )
= -168 - 325 + 168 + 425
= [ ( -168 ) + 168 ] + [ ( -325 ) + 425]
= 0 + 100
= 100
a,750
b,11
c,-200
d,26
-(168+325)+(168+425) = (-168+168)+(-325+425)= 0+100= 100
(38-276)+(38-65+276)=(38-38-65)+(276-276)=-65+0=-65
(269+135)+(-327-169)-(135-27)= (269-169)+(135-135)+ (327-27)=100+0+300= 400
271-(-43)+271-(-17)= (271-271)+(43+17)= 0+ 60=60
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