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

Toán Lớp 6: 407 – [ ( 190 170 ) : 4 + 9 ] : 2

Toán Lớp 6: 407 – [ ( 190 170 ) : 4 + 9 ] : 2

Comments ( 2 )

  1. Lời giải chi tiết:
    407-[(190-170):4+9]:2
    =407-(20:4+9):2
    =407-(5+9):2
    =407-14:2
    =407-7
    =400

  2. 407 – [ ( 190 170 ) : 4 + 9 ] : 2
    = 407 – [ 32300 : 4 + 9 ] : 2
    = 407 –  [ 8075 + 9 ]  : 2
    =407 – 8084 : 2
    =407 – 4042
    = – 3635
    cho mk ctlhn nhé bạn

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