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

Toán Lớp 5: Tìm x biết: a, X – 2,45= 11,25 : 1,5 b, 240,72 : x = 15 + 20,4

Toán Lớp 5: Tìm x biết: a, X – 2,45= 11,25 : 1,5 b, 240,72 : x = 15 + 20,4

Comments ( 2 )

  1. a. x – 2,45 = 11,25 : 1,5
    x – 2,45 – 7,5
    x = 7,5 + 2,45
    x = 9,95
    Vậy x = 9,95
    _____________________________
    b. 240,72 : x = 15 + 20,4
    240,72 : x = 35,4
    x = 240,72 : 35,4
    x = 6,8
    Vậy x = 6,8

  2. a) x-2,45= 11,25
    x= 11,25+2,45
    x= 13,7
    b) 240,72:x= 15+20,4
    240,72:x= 35,4
    x= 240,72:35,4
    x= 6,8
    #Thỏ
     

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

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