( 180 + 36 ) : 2 =
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160 : { 180 - [ 36 - ( 22 . 16 - 22 . 12 )]}
= 160 : { 180 - [ 36 - 22 . ( 16 - 12 )]}
= 160 : { 180 - [ 36 - 22 . 4 ]}
= 160 : { 180 - [ 36 - 4 . 4 ]}
= 160 : { 180 - [ 36 - 16 ]}
= 160 : { 180 - 20 }
= 160 : 160
= 1
160:{180-[36-(22.16-22.12)]}
=160:{180-[36-(4.16-4.12)]}
=160:{180-(36-16)}
=160:{180-20}
=160:160
=1
tk mk nha
=1
\(36:\left\{180:\left[2\cdot5^2-\left(5^3-3\cdot5\cdot7\right)\right]\right\}\)
\(=36:\left\{180:\left[2\cdot25-\left(125-15\cdot7\right)\right]\right\}\)
\(=36:\left\{180:\left[50-\left(125-105\right)\right]\right\}\)
\(=36:\left[180:\left(50-20\right)\right]\)
\(=36:\left(180:30\right)\)
\(=36:6\)
\(=6\)
\(=\dfrac{36}{180:\left[2\cdot25-5^3+15\cdot7\right]}=\dfrac{36}{180:30}=\dfrac{36}{6}=6\)
a: \(=27+5^2-1=27+25-1=52-1=51\)
b: \(=320:\left\{180-36+8\cdot16+4\cdot12\right\}=320:320=1\)
a.(1950+2555):15=1950:15+2555
=130+2555
=2685
b.(4200-378):21=4200-378:221
=4200-18
=4172
c.(3600-180):36=3600-180:36
=3600-5
=3595
108 nhé
~~~HT~~~
( 180 + 36) : 2 = 216 : 2
=108