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

Toán Lớp 6: c) a) 5 . 22 – 18 : 3 c) 23 . 17 – 23 . 14 e) 75 – ( 3.52 – 4.23 g) 150 + 50 : 5 – 2.3 b) 17 . 85 + 15 . 17 – 1

Toán Lớp 6: c) a) 5 . 22 – 18 : 3
c) 23 . 17 – 23 . 14
e) 75 – ( 3.52 – 4.23
g) 150 + 50 : 5 – 2.3
b) 17 . 85 + 15 . 17 – 120
d) 20 – [ 30 – (5 – 1)2 ]
f) 2.52 + 3: 710 – 54: 33
h) 5.32 – 32 : 42

Comments ( 2 )

  1. Giải đáp:
    5 . 22 – 18 : 3
    = 110 -6
    =104
    23 . 17 – 23 . 14
    = 23 . ( 17 -14)
    = 23. 3 
    = 69
    75 – ( 3.52 – 4.23)
    = 75 – ( 156  – 92)
    = 75 – 64 
    =  11
     150 + 50 : 5 – 2. 3
    =  (150 + 50) : 5 – 2.3
    = 200 : 5 – 2.3 
    = 40 – 6
    = 34
    b) 17 . 85 + 15 . 17 – 120 
    = 17 . ( 85 +15 ) -120
    = 17 . 100 -120
    =1700 – 120
    = 1580
    20 – [ 30 – (5 – 1)² ]
    = 20 – [ 30 – 4² ]
    20 – [ 30 – 16 ]
    = 20 –  14
    = 6
    5.32 – 32 : 42
    = 32 -( 42 : 5 )
    = 32 – 8
    = 24  

  2. Giải đáp:
     
    Lời giải và giải thích chi tiết:
    5 . 22 – 18 : 3
    = 110 -6
    =104
    23 . 17 – 23 . 14
    = 23 . ( 17 -14)
    = 23. 3 
    = 69
    75 – ( 3.52 – 4.23)
    = 75 – ( 156  – 92)
    = 75 – 64 
    =  11
     150 + 50 : 5 – 2. 3
    =  (150 + 50) : 5 – 2.3
    = 200 : 5 – 2.3 
    = 40 – 6
    = 34

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