TICK CHO MÌNH NHA

  2 .18 .14 + 3 .12.17- 4 .31. 9

= 504 + 612 - 1116

= 0

 2 .18 .14 + 3 .12.17- 4 .31. 9= 504 + 612 - 1116= 0

2.18.14+3.12.17-4.31.9

=36.14+36.17-36.31

=36.(17+14-31)

=36.0

=0

2.18.14 + 3.12.17 - 4.31.9

= 36.14 + 36.17 - 36.31

= 36. (14+17-31)

= 36. 0 =0

2.18.14 + 3.12.17-4.31.9

=36.14+36.17-36.31

=36.(14+17-31)

=36.0

=0

Chúc bạn học tốt , cho mik 1 tick nha

\(2.18.14+3.12.17-4.31.9\)

\(\)\(=504+612-1116\)

\(=1116-1116\)

\(=0\)

80683214060578168 mk viết để xem đáp án thôi nhé

2 x 18 x 14 + 3 x 17 x 12 + 4x 69 x 9

= (2 x 18) x 14 + ( 3 x 12) x 17 + (4 x 9) x 69

= 36 x 14 + 36 x 17 + 36 x 69

= 36 x (14 + 17 + 69)

= 36 x 100 = 3600  

a: \(72\cdot56+56\cdot28=56\left(72+28\right)=5600\)

b: \(53\cdot125-24\cdot53-53=53\left(125-24-1\right)=5300\)

c: \(42\cdot53+47\cdot156-47\cdot114=42\cdot53+47\cdot42=4200\)

d: \(28\cdot76+28\cdot25+28=28\cdot\left(76+25+1\right)=2800\)

e: \(37\cdot59-37\cdot3+37\cdot49=37\left(59-3+49\right)=3885\)

a) \(72.56+56.28=56\left(72+28\right)=56.100=5600\)

b) \(53.125-24.53-53=53\left(125-25-1\right)=53.100=5300\)

c) \(42.53+47.156-47.114=42.53+47\left(156-114\right)=42.53+47.42=42\left(53+47\right)=42.100=4200\)

d) \(28.76+28.25+28=28\left(76+25+1\right)=28.102=2856\)

e) \(37.59-37.3+49.37=37\left(59-3+49\right)=37.105=3885\)

f) \(2.14.18+3.12.17+4.69.9=36\left(14+17+69\right)=36.100=3600\)

a) = 56 . ( 72 + 28 )

 = 56 . 100

= 5600

b) = 53 . ( 125 - 24 - 1 )

= 53 . 100

= 5300

c) = 42 . 56 + 47 . ( 156 - 114 )

= 42 . 56 + 47 . 142

= 2352 + 6674

= ... 

d)= 28 . ( 76 +  25 +1 ) 

= 28 . 102

=...

e) = 37 . ( 59 - 3 + 49 )

= 37 . 13

=...

2772 nhé !  :)

2772 nhé !  :)

a)2.18.14+3.17.12+4.69.9
=(2.18).14+(12.3).17+(4.9).69
=36.14+36.17+36.69
=36.(14+17+69)
=36.100
=3600

b)1+(-3)+5+(-7)+9+(-11)+13+(-15)
=[1+(-3)]+[5+(-7)]+[9+(-11)]+[13+(-15)]
=(-2)+(-2)+(-2)+(-2)
=(-8)

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