Tính: 3 2 ( 0 , 375 ) 2
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375:53- (38:36-2x23)
=375:125-(32-2x8)
=375:125-(32-16)
=375:125-(9-16)
=375:125-(-7)
=3+7
=10
=
375 : 53 - ( 38 : 36 - 2 . 23 )
= 3 - ( 9 - 16 )
= 3 - (-7)
= 10
=))
![](https://rs.olm.vn/images/avt/0.png?1311)
TL:
a) 375 x 25 + 375 x 74 + 375
= 375 x 25 + 375 x 74 + 375 x 1
= 375 x (25 + 74 + 1)
= 375 x 100
= 37500
b) 2 x 250 x 50 x 8
= (2 x 50) x (250 x 8)
= 100 x 2000
= 200000
##học tốt##
a) 375x25+375x74+375x1
=375x(25+74+1)
=375x100
=37500
b)2x250x50x8
=(2x50)x(250x8)
=100x2000
=200000
![](https://rs.olm.vn/images/avt/0.png?1311)
a) 50+3x(25-16)2+150
=50+3x92+1
=50+3x81+1
=50+243+1
=294
b)22x52-35/32
=(2x5)2-35-2
=102-33
=100-27
=73
c)80-[130-(12-4)2 ]
=80-[130-82 ]
=80-[130-64]
=80-66
=14
d)100:[2x(52-35-8)]
=100:[2x9]
=100:18
=100/18
e)24:{300:[375-(150+15x5)]}
=24:{300:[375-(150+75)]}
=24:{300:[375-225]}
=24:{300:50}
=24:6
=4
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\(-4872-\left(375-4872\right)+300\)
\(=-4872-375+4872+300\)
\(=-75\)
a) A = -6 . ( -8 + 5 - 4 ) : 3 - 7 . |-2| . 3
A = -6 . ( -3 - 4 ) : 3 - 7 . 2 . 3
A = -6 . ( -7 ) : 3 - 14 . 3
A = 42 : 3 - 42
A = 14 - 42
A = -28
Vậy A = -28
b) -4872 - ( 375 - 4872) + 300
= -4872 - 375 + 4872 + 300
= ( -4872 + 4872 ) - ( 375 - 300 )
= 0 - 75
= -75
3 2 ( 0 , 375 ) 2 = 3 0 , 375 2 = 8 2 = 64