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

Toán Lớp 5: a,96,28×3,527+3,527×3,72 b,72,9×99+72×0,9 c,60-26,75-13,25 d,4,7×5,5-4.7×4,5 giúp nhaaaaaaaaaaaaa

Toán Lớp 5: a,96,28×3,527+3,527×3,72
b,72,9×99+72×0,9
c,60-26,75-13,25
d,4,7×5,5-4.7×4,5
giúp nhaaaaaaaaaaaaa

Comments ( 2 )

  1. $@Iris$
    a)96,28 xx 3,527 + 3,527 xx 3,72
    = 3,527 xx ( 96,28 + 3,72 )
    = 3,527 xx 100
    = 352,7
    b)72,9 xx 99 + 72 xx 0,9
    = 7217,1 + 64,8
    = 7281,9
    c)60 – 26,75 – 13,25
    = 60 – ( 26,75 + 13,25 )
    = 60 – 40
    = 20
    d)4,7 xx 5,5 – 4,7 xx 4,5
    =4,7 xx ( 5,5 – 4,5 )
    =4,7 xx 1
    =4,7
     

  2. a,96,28×3,527+3,527×3,72
    =(96,28+3,72)×3,572
    =100×3,572
    =357,2
    b,72,9×99+72×0,9
    =7217,1+64,8
    =7281,9
    c,60-26,75-13,25
    =60-(26,75+13,25)
    =60-40
    =20
    d,4,7×5,5-4.7×4,5
    =4,7×(5,5-4,5)
    =4,7×1
    =4,7

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

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