\(3,54\times73+0,46\times25+3,54\times26+0,46\times75+3,54\)

\(=3,54\times\left(73+26+1\right)+0,46\times\left(25+75\right)\)
\(=3,54\times100+0,46\times100\)

\(=354+46=400\)

Đáp án là : 400

   3,54 x 73 + 0,46 x 25 + 3,54 x 26 + 0,46 x 75 + 3,54

= 3,54 x ( 73 + 26 + 1 ) + 0,46 x ( 25 + 75 )

= 3,54 x 100 + 0,46 x 100

= 100 x ( 3,54 + 0,46 )

= 100 x 4

= 400

               Vậy biểu thức trên có giá trị là 400 nhé !

647-[y:(46+13+54)]=54-32+46

=647-[ y:( 46+13+54) ]=68

=647-[y:113]=68

=647-68

=579

=579x113

=65427

[54.(46+49)]-[46.(54-49)]

=[54.46+54.49]-[54.46-46.49]

=54.46+54.49-54.46+46.49

=54.46-54.46+54.49+46.49

=54.49+46.49

=49.(54+46)

=49.100

=4900

Chúc bn học tốt

\(54\times\left(46+49\right)-46\times\left(54-49\right)\)

\(=54\times46+54\times49-46\times54+46\times49\)

\(=\left(54\times46-46\times54\right)+49\times\left(54+46\right)\)

\(=49\times100\)

\(=4900\)

ppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp

Ukm

It's very hard

l can't do it 

Sorry!

A/

\(0,\left(54\right)+0,\left(46\right)=1\)

B/

\(0,3+\frac{1}{\frac{1}{3}}+0,4\left(2\right)\)

\(=0,3+3+0,4\left(2\right)\)

\(=3,3+0,4\left(2\right)\)

\(=3,72\)

Làm:

a) \(0,\left(54\right)+0,\left(46\right)=1\)

b) \(0,3+\frac{1}{\frac{1}{3}}+0,4\left(2\right)\)

\(=0,3+3+0,4\left(2\right)\)

\(=3,3+0,4\left(2\right)\)

\(=3,7\left(2\right)\)

~ học tốt ~

46.(54-15)-54.(46+15)

=46.54-46.15-54.46+54.15

bạn bấm máy tính ra kết quả nhé

Ta có: 

46 + 17 + 54 = ( 46 + 54 ) + 17 = 100 + 17 = 117

18

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