a, \(24:\left\{300:\left[375-\left(150+15.5\right)\right]\right\}\)

\(=24:\left\{300:\left[375-\left(150+325\right)\right]\right\}\)

\(=24:\left\{300:\left[375-225\right]\right\}\)

\(=24:\left\{300:150\right\}\)

\(=24:2=12\)

b, \(1449:\left[\left(216+184\right):8\right].9\)

\(=1449:\left[400:8\right].9\)

\(=1449:50.9\)

\(=28,98.9=260,82\)

c, \(222+224+......+444\)

\(=\dfrac{\left[\left(444-222\right):2+1\right]\left(444+222\right)}{2}\)

\(=37264\)

d, \(127.36+64.127-127.100\)

\(=127\left(36+64-100\right)\)

\(=127.0=0\)

24:\(\left\{300:\left[375-\left(150+15.5\right)\right]\right\}\)

=24:\(\left\{300:\left[375-15.\left(10-5\right)\right]\right\}\)

=24:\(\left\{300:\left[15.25-15.5\right]\right\}\)

=24:\(\left\{300:\left[15.\left(25-5\right)\right]\right\}\)

=24:\(\left\{300:\left[15.20\right]\right\}\)

=24:\(\left\{300:300\right\}\)

=24:1=24

1449:\(\left[\left(216+184\right):8\right].9\)

=1449:(400:8).9

=1449:50.9

=28,98.9=260,82

b) 1449 - {[(216 + 184) : 8] . 9}

=  1449 - {[400 : 8] : 9}

=  1449 - {50 : 9}

=  1449 - \(\frac{50}{9}\)

=  \(\frac{12991}{9}\)

c) 342 . 163 + 337 . 342 - 10³ . 171

=  342 . (163 + 337) - 1000 . 171

=  342 . 500 - 500 . 2 . 171

=  500 . (342 - 2 - 171)

=  500 . 169

=  84500

d) (13 . 17¹⁴ + 4 . 17¹⁴) : 17¹³ - (14 . 9 - 14 . 5) : 8

=  [17¹⁴ . (13 + 4)] : 17¹³ - [14 . (9 - 5)] : 8

=  [17¹⁴ . 17] : 17¹³ - [14 . 4] : 8

=  17¹⁵ : 17¹³ - 56 : 8

=   17² - 56 : 8

=  17² - 7

=  289 - 7

=  282

B =2

đúng cho tớ 

a, 146

B, 999

C, 2480

D, 4

Học tốt

a) 151 - 2⁹¹ : 2⁸⁸ + 1² . 3

= 151 - 2³ + 1 . 3

= 151 - 8 + 3

= 143 + 3

= 146

b) 1449 - { [ ( 216 +184 ) : 8 ] . 9 }

= 1449 - { [ 400 : 8 ] . 9 }

= 1449 - { 50 . 9 }
= 1449 - 450

= 999

c) 23 . 75 + 25 . 23 + 180

= 23 . ( 75 + 25 ) + 180

= 23 . 100 + 180

= 2300 + 180

= 2480

d) 80 - ( 4 . 5² - 3 . 2³ )

= 80 - ( 4 . 25 - 3 . 8 )

= 80 - ( 100 - 24 )

= 80 - 76

= 4

151-2⁹¹:2⁸⁸+1²*3=151-2³+1*3=151-8+1*3=146

b, 1449-{[(216+184):8]*9}=1449-{[400:8]*9}=1449-{50*9} = 1449-450=999

c,23*75+25*23+180=25*(75+23)+180=2630

d,80-(4*5²-3*2³)=80-(4*25-3*8)=4

muốn giải nhanh thì bấm máy tính đi

ngu dẫy mà k biết giải

ngu quá luôn

ngu như cẩu ý

Bài 1: Thực hiện các phép tính sau:

\(a)\)Chưa rỏ đề

\(b)\)\(5025\div5-25\div5\)

\(=\)\(1005-5\)

\(=\)\(1000\)

\(c)\)\(218-180\div2\div9\)

\(=\)\(218-10\)

\(=\)\(208\)

\(d)\)\(\left(328-8\right)\div32\)

\(=\)\(320\div32\)

\(=\)\(10\)

Bài 1:

a) ( Tôi không nhìn rõ đầu bài )

b) 5025  :  5  -  25  :  5

=  ( 5025  -  25 )  :  5

=        5000   :   5

=       1000

c)   218  -  180  :  2  :  9

=     218   -    180  :  (  2  .  9 )

=      218    -    180   :  18

=       218    -    10

=       208

d)   (  328  -  8  )  :  32

=      320   :   32

=     10 

Bài 2: Thực hiện phép tính:

\(a)\)\(27.75+25.27-150\)

\(=\)\(27.\left(75+25\right)-150\)

\(=\)\(27.100-150\)

\(=\)\(2700-150\)

\(=\)\(2550\)

\(b)\)\(12\div\left\{400\div\left[500-\left(125+25.7\right)\right]\right\}\)

\(=\)\(12\div\left\{400\div\left[500-\left(125+175\right)\right]\right\}\)

\(=\)\(12\div\left\{400\div\left[500-300\right]\right\}\)

\(=\)\(12\div\left\{400\div200\right\}\)

\(=\)\(12\div2\)

\(=\)\(6\)

\(c)\)\(13.17-256\div16+14\div7-1\)

\(=\)\(221-16+2-1\)

\(=\)\(206\)

\(d)\)\(18\div3+182+3.\left(51\div17\right)\)

\(=\)\(6+182+3.3\)

\(=\)\(6+182+9\)

\(=\)\(197\)

2^10:2⁵+3².2²-4³

=2⁵⁺9.4-64

=32+36-64

=68-64

=4