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\(10-\left[120:3-2\left(132-117\right):2\right]\)
\(=10-\left[120:3-2.15:2\right]\)
\(=10-\left[40-30:2\right]\)
\(=10-\left[40-15\right]\)
\(=10-25\)
\(=-15\)
\(163-136:\left\{150:3-320:\left[250-\left(120+15.6\right)\right]\right\}\)
\(163-126:\left\{150:3-320:\left[250-\left(120+90\right)\right]\right\}\)
\(163-126:\left\{150:3-320:\left[250-210\right]\right\}\)
\(163-126:\left\{150:3-320:40\right\}\)
\(163-126:\left\{50-8\right\}\)
\(163-126:42\)
\(163-3\)
\(160\)
hok tốt
\(340-\left(200+40\right)\)
\(=340-200-40\)
\(=300-200\)
\(=100\)
\(150:\left(20+5\right)\)
\(=150:25\)
\(=6\)
\(340-\left(200+40\right)\)
\(=340-240\)
\(=580\)
\(150:\left(25+5\right)\)
\(=150:30\)
\(=50\)
\(126+(-20)+|124|-(-320)-|-150|\\=126-20+124+320+125\\=(320-20)+124+125+126\\=300+375\\=675\)
\(126+\left(-20\right)+|124|-\left(-320\right)-|-150|\)
\(=126-20+124+320-150\)
\(=400\)
= 126 + ( - 20 ) + 124 - ( - 320 ) - 150
= ( 126 + ( - 20 ) ) + 124 - ( - 320 ) - 150
= 106 + 124 - ( - 320 ) - 150
=( 106 + 124 ) - ( - 320 ) -150
= 230 - ( - 320 ) - 150
= ( 230 - ( - 320 ) ) -150
= 550 - 150
= 400
\(=100+124+320-150\)
\(=224+320-150\)
\(=544-150\)
\(=394\)
=126 + (-20) + 124 - (-320) - 15
= 106 + 124 - (-320) - 15
= 230 - (-320) -15
= 230 + 320 - 15
= 550 - 15
= 535
126+(-20)+|124|-(-320)-|-150|
=126+(-20)+124-(-320)-150
=400
73 . 35 + 27 . 19 - 20 . 73 + 81 . 27 + 85 . 73
= 73 . ( 35 - 20 + 85 ) + 27. ( 19 + 81 )
= 73 . 100 + 27. 100
= ( 73 + 27 ) . 100
= 100 . 100
= 10 000
a) \(\dfrac{28}{11}\cdot\dfrac{21}{22}\cdot9\)
\(=\dfrac{28\cdot21}{11\cdot22}\cdot9\)
\(=\dfrac{14\cdot21}{11\cdot11}\cdot9\)
\(=\dfrac{294}{121}\cdot9\)
\(=\dfrac{2646}{121}\)
=126-20+124+320-150
=400
126+(-20)+l124I-(-320)-l-150l
=126-20+124+320-150
=106+124+320-150
=230+320-150
=550-150
=400.
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