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a: =321-21*[(2*27+16:32)-52]
=321-21*[2+0,5]
=321-21*2,5=268,5
b: \(=\dfrac{160}{17+\left[9\cdot5\left(14+8\right)\right]}\)
\(=\dfrac{160}{17+45\cdot22}=\dfrac{160}{1007}\)
c: =100*9:3^2=100
d: =2*27+143:(36-25)
=54+143:11
=54+13=67
3: =231+26-209-26=22
4: =19(25+30+45)=19x100=1900
5: =-50+19+143+79-25-48
=-75+95+98
=98+20=118
\(160:\left\{17+\left[3^3\cdot5-\left(14+2^7:2^4\right)\right]\right\}\)
\(=160:\left\{17+\left[27\cdot5-\left(14+2^3\right)\right]\right\}\)
\(=160:\left\{17+\left[135-\left(14+8\right)\right]\right\}\)
\(=160:\left[17+\left(135-22\right)\right]\)
\(=160:\left(17+113\right)\)
\(=160:130\)
\(=\dfrac{16}{13}\)
#Urushi☕
160 : { 17 + [ 3 3 ⋅ 5 − ( 14 + 2 7 : 2 4 ) ] } = 160 : { 17 + [ 27 ⋅ 5 − ( 14 + 2 3 ) ] } = 160 : { 17 + [ 135 − ( 14 + 8 ) ] } = 160 : [ 17 + ( 135 − 22 ) ] = 160 : ( 17 + 113 ) = 160 : 130 = 16 13
=160:{|-17|+[32.5-(14+8)]}
=160:{|-17|+[32.5-22]}
=160:{|-17|+[9.5-22]}
=160:{|-17|+[45-22]}
=160:{|-17|+23}
=160:{17+23}
=160:40
=4
a) 35-{12-[-14+(-2)]}.
= 35 - 12 + 14 + 2
= 35 + 14 - (12 - 2)
= 49 - 10
= 39
b) 160:{17+[9×5-(14+2048:256)]}.
= 160: {17 + [45 - (14 + 8)]}
= 160: {17 + [45 - 22)]}
= 160:{17 + 23}
= 160: 40 = 4
c) 20210-{225:[20×15-8×25]-25}.
= 1 - {225:[300 - 200] - 25}
= 1 - {225 : 100 - 25}
= 1 - {2,25 - 25}
= 1 + 25 - 2,25
= 23,75
a) 3.52 + 15.22 - 26 : 2
= 3.25 + 15.4 - 13
= 75 + 60 - 13
= 135 - 13
= 122
b) 2021 + 5.[300 - (17 - 7)2]
= 2021 + 5.[300 - 102]
= 2021 + 5.[300 - 100]
= 2021 + 5.200
= 2021 + 1000
= 3021
c) 32.5 + 23.10 - 81
= 9.5 + 8.10 - 81
= 45 + 80 - 81
= 125 - 81
= 44
a) 3.52 + 15.22 - 26 : 2
= 3. 25 + 15 . 4 - 26 : 2
= 75 + 60 - 13
= 135 - 13
= 122
b) 2021 + 5[300 - (17 - 7)2 ]
= 2021 + 5[300 - 102 ]
=2021 + 5[300 - 100]
=2021 + 5.200
=2021 + 1000
= 3021
c) 32 . 5 + 23 . 10 - 81
= 9 . 5 + 8 . 10 - 81
= 45 + 80 - 81
= 125 - 81
= 44
160 : {|-17| + [32 . 5 - (14 + 211 : 28)]}
= 160 : {|-17| + [32 . 5 - (14 + 23)]}
= 160 : {|-17| + [32 . 5 - (14 + 8)]}
= 160 : {|-17| + [32 . 5 - 22]}
= 160 : {|-17| + [9 . 5 - 22]}
= 160 : {|-17| + [45 - 22]}
= 160 : {|-17| + 23}
= 160 : {17 + 23}
= 160 : 40
= 4