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

Toán Lớp 6: -(-171 + 89 + 223) – (71 – 105 – 111) + 233

Toán Lớp 6: -(-171 + 89 + 223) – (71 – 105 – 111) + 233

Comments ( 2 )

  1. Giải đáp+Lời giải và giải thích chi tiết:
     -(-171+89+223)-(71-105-111)+223
    =171-89-223-71+105+111+223
    =(171-71)+(233-223)+(111-89)+105
    =100+10+22+105
    =110+22+105=132+105
    $=237$

  2. (-171 + 89 + 223) – (71 – 105 – 111) + 233
    = 171 – 89 – 223 – 71 + 105 + 111 + 233
    =  ( 171 + 111 ) + ( 233 – 223 ) + ( -89 +105 ) – 71
    = 282 + 10 + 16 – 71
    = 292 + 16 – 71
    = 308 – 71
    = 237

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

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