256+125=?
417+168=?
555+209=?
146+214=?
227+337=?
giúp tớ nha
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256+1255=381
417+168=585
555+209=764
146+214=360
227+227=564
256 + 125 = 381
417 + 168 = 585
146 + 214 = 360
227 + 337 = 564
a (221+23-58)-(58+221+23)
=221+23-58-58-221-23
=(221-221) + (23-23) +(-58-58)
=-116
( 2x + 3 ) 3 = -125
( 2x + 3 ) 3 = ( -5 ) 3
=> 2x + 3 = -5
2 x = -8
x = -4
( x + 1 / 4 ) 4 = 625 / 256
( x + 1 / 4 ) 4 = ( 5 / 4 ) 4
=> x + 1 / 4 = 5/4
x = 4 / 4
x = 1
\(\left|-19\right|+\left(-29\right)+\left(-43\right)+\left|71\right|\)
\(=19+\left(-29\right)+\left(-43\right)+71\)
\(=\left(-10\right)+\left(-43\right)+71\)
\(=\left(-53\right)+71\)
\(=18\)
\(\left|-33\right|+\left(-73\right)+\left(-41\right)+\left|22\right|\)
\(=33+\left(-73\right)+\left(-41\right)+22\)
\(=\left(-40\right)+\left(-41\right)+22\)
\(=\left(-81\right)+22\)
\(=-59\)
\(\left|-25\right|+\left(-75\right)+\left(-17\right)+\left|99\right|\)
\(=25+\left(-75\right)+\left(-17\right)+99\)
\(=\left(-50\right)+\left(-17\right)+99\)
\(=\left(-67\right)+99\)
\(=32\)
\(\left|-22\right|+\left(-92\right)+\left(-56\right)+22\)
\(=22+\left(-92\right)+\left(-56\right)+22\)
\(=\left(-70\right)+\left(-56\right)+22\)
\(=\left(-126\right)+22\)
\(=-104\)
Phần dưới bạn làm nốt nhé!
a) 4.25-12.5+170:10
=100-60+17
=40+17
=57
b) (7+33:32).4-3
=(7+3).4-3
=10.4-3
=40-3
=37
c) 12:{400:[500-(125+25.7)]}
=12:{400:[500-(125+175)]}
=12:{400:[500-300]}
=12:{400:200}
=12:2
=6
d) 168+{[2.(24+32)-2560]:72}
=168+{[2.(16+9)-1]:49}
=168+{[2.25-1]:49}
=168+{[50-1]:49}
=168+{49:49}
=168+1
=169
256+125=381
417+168=585
555+209=764
146+214=360
227+337=564
256 + 125 = 381
417 + 168 = 585
555 + 209 = 746
146 + 214 = 360
227 + 337 = 564