Bài 1 : a, $10^{2}$ – [ 60 : ( $5^{6}$ : $5^{4}$ – 3 x 5 ) ] b , 50 – [ 50 – $2^{3}$ x 5 ) : 2 + 3 ] c, 10 – [ ( $8^{2}$ – 48 ) x 5 + ( $2^{3}$

Question

Bài 1 :
a, $10^{2}$ – [ 60 : ( $5^{6}$ : $5^{4}$ – 3 x 5 ) ]
b , 50 – [ 50 – $2^{3}$ x 5 ) : 2 + 3 ]
c, 10 – [ ( $8^{2}$ – 48 ) x 5 + ( $2^{3}$ x 10 + 8 ) ] : 28

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Aaliyah 3 tuần 2021-07-06T08:46:33+00:00 2 Answers 0 views 0

Answers ( )

    0
    2021-07-06T08:48:15+00:00

    Đáp án:

     

    Giải thích các bước giải:

     a ) 10^2 -[ 60: ( 5^6 :5^4 – 3.5)

     = 100 – [ 60 : ( 5^2 -15)

     =100 – [ 60 : ( 25-15)]

     =100 – [ 60 : 10 ]

     =100-6

    =94

    b) 50- [ 50 – 2^3 . 5 ) :2+3

    =50 -(50 -8 .5 ): 5

    = 50 – ( 50 -40 ):5

    =50 – 10 :5

    = 50-2

    =48

    c) 10 -[ ( 8^2-48 ).5 + ( 2^3 . 10 +8 )] :28

    =10 – [ (64 -48 ).5 + ( 8 .10 +8 )] :28

    =10 – [ 80 + 88 ] :28

    =10 – 6

    = 4

    0
    2021-07-06T08:48:25+00:00

    Đáp án:

     

    A, 100 – [60 : ( 5² – 3 x5 )] 

    100 – [60: ( 25 – 15 ) ] 

     100 -(60:10 ) 

    100-6 = 94

    B ,  50 – [ 50 -( 8 x5 )  : 2 + 3 ] 

    = 50 – 10 : 2 + 3 

    50 – 5 + 3 = 48 

     C 

      10 – [(  64-48) x5 + (8 x10 + 8 ) ] : 28 

    10 – [ 80 + 88 ] : 28 

    10 – 6 = 4

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