đề đâu bn

đề đâu bn

\(464\div4+81\times2\)

\(=116+162\)

\(=278\)

464 : 4 + 81 x 2

= 116 + 162

= 278

 464 : 4 + 81 × 2

= 116 + 162

= 278

C1: \(A=\left(\frac{36}{6}-\frac{4}{6}+\frac{3}{6}\right)-\left(\frac{150}{30}+\frac{50}{30}-\frac{45}{30}\right)-\left(\frac{18}{6}-\frac{14}{6}+\frac{15}{6}\right)\)

\(=\frac{35}{6}-\frac{155}{30}-\frac{19}{6}=\frac{35}{6}-\frac{31}{6}-\frac{19}{6}=-\frac{15}{6}=-2\frac{1}{2}\)

C2: \(6-\frac{2}{3}+\frac{1}{2}-5-\frac{5}{3}+\frac{3}{2}-3+\frac{7}{3}-\frac{5}{2}\)

\(=\left(6-5-3\right)-\left(\frac{2}{3}+\frac{5}{3}-\frac{7}{3}\right)+\left(\frac{1}{2}+\frac{3}{2}-\frac{5}{2}\right)\)

\(=-2-0-\frac{1}{2}=-2\frac{1}{2}\)

=2002x2001x10001-2001x2002x10001

=0

ket qua bang 0

2002 x 20012001 - 2001x20022002

=2002 x 2001 x10001-201 x 2002 x 10001

= 0

3,265 + 4,572 + 2,735 + 1,128

= (3,265 + 2,735) + (4,572 + 1,128)

=  6 + 5,7

= 11,7

3,265+4,572+2,735+1,128

=(3,265+2,735)+(4,572+1,128)

=          6          +       6

=                     12

=(3,265+2,735)+(4,572+1,128)

=5+5

=10

\(53.68x15.6-53.68x5.6\)

\(=53.68x\left(15.6-5.6\right)\)

\(=53.68x10\)

\(=536.8\)

Nhớ k mk nha bn minh tuyệt vọng lắm!

53,68*15,6-53,68*5,6

=53,68* (15,6-5,6)

=53,68-10

=5,368

=53.68*(15.6-5.6)

=53.68*10

=536.8