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1134 - { [ ( 216 + 184 ) : 8 ] . 13 }
= 1134 - { [ 400 : 8 ] .13 }
= 1134 - { 50 . 13 }
= 1134 - 650
= 484
k nha
a) Ta có: \(347\cdot2^2-2^2\left(216+184\right):8\)
\(=347\cdot4-4\cdot400:8\)
\(=1388-200=1188\)
B = 1434:{[(216+184:8).3]}
B = 1434:{[239.3]}
B = 1434 : 717
B = 2
\(B=1434:\left\{\left[\left(216+184:8\right).3\right]\right\}\)
\(B=1434:\left\{\left[216+23\right].3\right\}\)
\(B=1434:\left(239.3\right)\)
\(B=1434:717\)
\(B=2\)
(Tíck cho mình với nhá!)
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
\(347.2^2.\left(216+184\right):8=347.4.400:8=1388.50=69400\)
\(347.2^2.\left(216+184\right):8\)
\(=347.4.400:8\)
\(=1388.400:8\)
\(=555200:8\)
\(=69400\)