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

Toán Lớp 6: a) 386-(287+386)- (13+0) b) 332-(681+232-431) Tính một cách hợp lí Cảm ơn các bn

Toán Lớp 6: a) 386-(287+386)- (13+0)
b) 332-(681+232-431)
Tính một cách hợp lí
Cảm ơn các bn

Comments ( 2 )

  1. ~ Bạn tham khảo ~
    a) 386-(287+386)-(13+0)
    = 386-287-386-13-0
    = (386-386)-(287+13)-0
    = 0-300-0
    = -300
    b)332-(681+232-431)
    = 332-681-232+431
    = (332-681) – (232-431)
    = -349 – (-199)
    = -150
    $#Vịt vàng$

  2. $\text{ a) 386 – ( 287 + 386 ) – ( 13 + 0 ) }$
    $\text{ = 386 – 287 – 386 – 13 }$
    $\text{ = ( 386 – 386 ) – ( 287 + 13 ) }$
    $\text{ = 0 – 300 }$
    $\text{ = -300 }$
    $\text{ b) 332 – ( 681 + 232 – 431 ) }$
    $\text{ = 332 – 681 – 232 + 431 }$
    $\text{ = ( 332 – 232 ) – ( 681 – 431 ) }$
    $\text{ = 100 – 250 }$
    $\text{ = -150 }$
     

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

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