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

Toán Lớp 6: a) -3.7-4.(-5)+1 b) 18-10:(+2)-7 c) 15:(-5).(-3)-8 d) (6.8-10:5)+3.(-7)

Tháng Tư 14, 2023 Toán học 2 Comments 0 views

Toán Lớp 6: a) -3.7-4.(-5)+1
b) 18-10:(+2)-7
c) 15:(-5).(-3)-8
d) (6.8-10:5)+3.(-7)

Comments ( 2 )

  1. hongocha12
    hongocha12
    14 Tháng Tư, 2023 at 1:05 chiều
    Reply
    a) – 3 . 7 – 4 . ( – 5 ) + 1
    = – 21 + 20 + 1
    = – 1 + 1
    = 0
    b) 18 – 10 : ( + 2 ) – 7
    = 18 – 5 – 7
    = 12 – 7
    = 5
    c) 15 : ( – 5 ) . ( – 3 ) – 8
    = – 3 . ( – 3 ) – 8
    = 9 – 8
    = 1
    d) ( 6 . 8 – 10 : 5 ) + 3 . ( – 7 )
    = ( 48 – 2 ) – 21
    = 46 – 21
    = 25

  2. minhhaanh
    minhhaanh
    14 Tháng Tư, 2023 at 1:04 chiều
    Reply
    a, -3.7-4.(-5)+1
    =-21+20+1
    =-21+21
    =0
                                      
    b, 18-10:2-7
    =18-5-7
    =13-7
    =6
                                    
    c, 15:(-5).(-3)-8
    =-3.(-3)-8
    =9-8
    =1
                                  
    d, (6.8-10:5)+3(-7)
    =(48-2)+(-21)
    =46+(-21)
    =25
     

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

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