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222-9+11+12:2*14+14 = ? ( )

Toán Lớp 6: help me (-49) +512 + |-49| + (-12)

Toán Lớp 6: help me (-49) +512 + |-49| + (-12)

Comments ( 2 )

  1. (-49)+512+|-49|+(-12)
    =(-49)+512+49+(-12)
    =(49-49)+(512-12)
     =0+500
    =500

  2. $(-49)$ $+$ $512$ $+$ $|-49|$ $+$ $(-12)$
    $=$ $(-49)$ $+$ $512$ $+$ $49$ $+$ $(-12)$
    $=$ $[(-49)$ $+$ $49]$ $+$ $[512$ $+$ $(-12)]$
    $=$ $0$ $+$ $500$
    $=$ $500$
    $Chúc$ $bạn$ $học$ $tốt!$

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222-9+11+12:2*14+14 = ? ( )