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

Toán Lớp 4: Tính nhanh 137+136-135+134-133+132-131+130

Toán Lớp 4: Tính nhanh 137+136-135+134-133+132-131+130

Comments ( 2 )

  1. 137+136-135+134-133+132-131+130
    137+(136-135)+(134-133)+(132-131)+130
    =137+1+1+1+130
    =140+130
    =270
    #NoCopy
     

  2. 137+136-135+134-133+132-131+130
    =137+(136-135)+(134-133)+(132-131)+130
    =(137+130)+(136-135)+(134-133)+(132-131)
    =267+1+1+1
    =270

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

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