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

Toán Lớp 1: 54+45+67+23-9+57+55-44+68-79 =

Toán Lớp 1: 54+45+67+23-9+57+55-44+68-79 =

Comments ( 2 )

  1. Giải đáp:
     #Clickbim 
    54+45+67+23-9+57+55-44+68-79
    =99 +67+23-9+57+55-44+68-79
    =166+23-9+57+55-44+68-79
    =189-9+57+55-44+68-79
    =180+57+55-44+68-79
    =237+55-44+68-79
    =292-44+68-79
    =248+68-79
    =316-79
    =237
    Lời giải và giải thích chi tiết:
     

  2.     54 + 45 + 67 + 23 – 9 + 57 + 55 – 44 + 68 – 79  
    = 54 – 44 + 45 + 55 + 67 + 23 + 68 – 79 – 9 + 57
    = ( 54 – 44 ) + ( 45 + 55 ) + ( 67 + 23 ) + 68 – 79 – 9 + 57
    = 10 + 100 + 90 + 68 – 79 – 9+ 57
    = ( 100 + 10 + 90 ) – ( 79 + 9 ) + 68 + 57
    = 200 – 88 + 68 + 57  
    = 200 – ( 88 – 68 ) + 57
    = 200 – 20 + 57
    = 180 + 57
    = 237

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