=228 ban nhe k di

Tính :

( 456 x 11 + 912 ) x 37 : 13 : 74

= ( 456 x 11 + 456 x 2 ) x 37 : 13 : 74

= 456 x  ( 11 + 2 ) x 37 : 13 : 74

= 456 x 13 x 37 : 13 : 37 x 2

= 2³ x 3 x 19 x 13 x 37 : 13  : 37 x 2

= 8 x 3 x 19 x 37 : 37 x 2

= 4 x 3 x 19

= 228

Mk làm như vầy Không biết đã đúng hay chưa ? Mong các bạn giúp

Tính :

( 456 x 11 + 912 ) x 37 : 13 : 74

= ( 456 x 11 + 456 x 2 ) x 37 : 13 : 74

= 456 x  ( 11 + 2 ) x 37 : 13 : 74

= 456 x 13 x 37 : 13 : 37 x 2

= 2³ x 3 x 19 x 13 x 37 : 13  : 37 x 2

= 8 x 3 x 19 x 37 : 37 x 2

= 4 x 3 x 19

= 228

Mk làm như vầy Không biết đã đúng hay chưa ? Mong các bạn giúp

(456x11+912)x37:13x74

= (5016+912)x37:13x74

=     5928      x37:13x74

=         219336    :13x74

=           16872         x74

=               1248528.

K nhé

\(\left(456\times11+912\right)\times37:13\times74\)

\(=\left(5016+912\right)\times37:13\times74\)

\(=5928\times37:13\times74\)

\(=219336:13\times74\)

\(=16872\times74\)

\(=1248528\)

1248528 nha

Ta có: \(B=\left(45\cdot1+912\right)\cdot37:\left(13\cdot74\right)\)

\(=\dfrac{37\left(45\cdot1+912\right)}{13\cdot74}\)

\(=\dfrac{45+912}{13\cdot2}\)

\(=\dfrac{957}{26}\)

(456\(\times\)11+912)\(\times\)37:(13\(\times\)74)

=5928\(\times37:\)962

=219336:962

=228

Là 228 nhé

   ( 456 x 11 + 912 ) x 37 : 13 x 74 

= ( 5 016 + 912 ) x 37 : 13 x 74

= 5 928 x 37 : 13 x 74 

= 219 336 : 13 x 74

= 16 872 x 74

= 1 248 528

\(\frac{\left(456.11+912\right).37}{13.74}=\frac{\left(456.11+912\right).37}{13.37.2}=\frac{\left(456.11+456.2\right).37}{13.37.2}=\frac{456.\left(11+2\right).37}{13.37.2}\)

= \(\frac{456.13.37}{13.37.2}=\frac{456}{2}=228\)

2010 x 2010 - 2009 x 2011

= ( 2011 - 2010 ) x 2010 - 2009 x 2011

= 2011 x 2010 - 1 x 2010 - 2009 x 2011

= 2011 x ( 2010 - 2009 ) - 1 x 2010

= 2011 x 1 - 2010 

= 2011 - 2010 

= 1

( 456 x 11 + 912 ) x 37 : ( 13 x 74 )

= ( 456 x 11 + 456 x 2 ) x 37 : ( 13 x 74 )

= [ 456 x ( 11 + 2 ) ] x 37 : ( 13 x 74 )

= [ 456 x 13 ] x 37 : ( 13 x 74 )

= 13 x 456 x 37 : ( 13 x 37 x 2 )

= 13 x 37 x 2 x 228 : ( 13 x 37 x 2 )

= ( 13 x 37 x 2 ) x 228 : ( 13 x 37 x 2 )

= ( 13 x 37 x 2 ) : ( 13 x 37 x 2 ) x 228

= 1 x 228

= 228

(44 x 52 x 60) : (11 x13 x 15 )

= [ ( 4 x 11 ) x ( 4 x 13 ) x ( 4 x 15 ) ] : (11 x13 x 15 )

= [ 4 x 11 x 4 x 13 x 4 x 15 ] : (11 x13 x 15 )

= [ ( 4 x 4 x 4 ) x ( 11 x 13 x 15 ) ] : (11 x13 x 15 )

= 64 x (11 x13 x 15 ) : (11 x13 x 15 )

= 64 x 1

= 64

a) 2010 x 2010 - 2009 x 2011 

= 2010 x 2010 - [ 2009 x ( 2010 +1) ]

=2010 x 2010 - 2009 x 2010 - 2009 

=2010( 2010 - 2009 ) -2009 

= 2010 -2019

= 1

c) ( 44 x 52 x60 ) : (11x13x15)

\(\frac{44\cdot52\cdot60}{11\cdot13\cdot15}=\frac{4\cdot11\cdot4\cdot13\cdot4\cdot15}{11\cdot13\cdot15}=64\)

B) (456 x 11 +912) x 37 : ( 13 x 74 )

= \(\frac{\left(456\cdot11+912\right)\cdot37}{13\cdot74}=\frac{\left[456\left(11+2\right)\right]\cdot37}{13\cdot37}=\frac{456\cdot13}{13\cdot2}=\frac{456}{2}=228\)

Nhớ k mik nha bn

a) A= ( 5016+912).37:13:74

    A= 5928.37:13:74

    A=219336:13:74

    A=16872:7

   A=228

b) B=[687.3+687.7]:(338+1036)

   B=687.(3+7):1374

   B=687.10:1374

   B=6870:1374

   B=5

=(5016+912). 37 : 13 : 74

=5928.37 : 13 : 74

=219336 : 13 : 74 

=16872:74

=2410

(456.11+912).37:13:74

= (456.11+912):13:(74:37)

= (456.11+456.2):13:2

= 456.(11+2):13:2

= 456.13:13:2

= (456:2).(13:13)

= 228.1

= 228

=5928.37. 37 : 13 : 74

=219336.: 13 : 74

=16872:74

=228

chac chan la dung nha

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