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c) \(174:\left\{2.\left[36+\left(4^2-23\right)\right]\right\}\)
\(=174:\left\{2.\left[36-7\right]\right\}\)
\(=174:\left[2.29\right]\)
\(=174:58\)
\(=3\)
=174/{2[36+(16-23)]}
=174/{2[36+(-7)]}
=174/{2*19}
=174/38
=87/19
Ta có 174 : {2.[36 + (42 - 2.3)]}
= 174 : {2.[36 + 10]}
= 174 : (2 . 46)
= 174 : 92
= \(\frac{87}{46}\)
174 : {2.[36 + (42 - 23)]}
= 174 : {2.[36 + (-7)]}
= 174 : (2 . 29)
= 174 : 58
= 3
174:{2[36+(4^2-23)]}
=174:{2[36+(-7)]}
=174:{2.29}
=174:58
=3
\(174:\left\{2.\left[36+\left(4^2-23\right)\right]\right\}\)
\(=174:\left\{2.\left[36+\left(16-23\right)\right]\right\}\)
\(=174:\left\{2.\left[36+\left(-7\right)\right]\right\}\)
\(=174:\left\{2.29\right\}\)
\(=174:58\)
\(=3\)
Câu 1 : Thực hiện phép tính.
a. 17.64 + 17.36 + 315
= 17 . ( 64 + 36 ) + 315
= 17 . 100 + 315
= 1700 + 315
= 2015
b. 25 + [(-38) + (-25)] + 18
= 25 + ( -38) + (-25) + 18
= [ 25 + (-25) ] + [ (-38) + 18 ]
= 0 + (-20)
= -20
.
=174:{2[36+(16-23)]}
=174:{2[36+(-7)]}
=174:{2x29}
=174:58
=3
câu 1:
x - 53 - 16 = 23
x - 53 = 23 + 16
x - 53 = 39
x = 39 + 53
x = 92
\(27.77+24.27-27\)
\(=27.\left(77+24-1\right)\)
\(=27.100\)
\(=2700\)
\(174\div\left\{2\left[36+\left(4^2-23\right)\right]\right\}\)
\(=174\div\left\{2\left[36+\left(16-23\right)\right]\right\}\)
\(=174\div\left\{2\left[36+\left(-7\right)\right]\right\}\)
\(=174\div\left\{2.29\right\}\)
\(=174\div58\)
\(=3\)
\(3^2.4-\left[30-\left(5-2\right)^2\right]\)
\(=9.4-\left[30-3^2\right]\)
\(=36-\left[30-9\right]\)
\(=36-21\)
\(=15\)
174 : {2.[36 + (44 - 23)]}
= 174 : {2.[36+(-7)]}
= 174 : {2. 29}
= 174 : 58
= 3
Ta có 174 : {2.[36 + (42 - 23)]}
= 174 : {2.[36 + (-7)]}
= 174 : (2 . 29)
= 174 : 58
= 3