a) = 54

b) = 49

a) \(\frac{36x45}{6x5}\) = \(\frac{6x6x5x9}{6x5}\) = 6 x 9 = 54

a) 36x45/6x5

=6x9/1x1

=54

b) 56x63/9x8

=7x7/1x1

=49

k mk nha mk k lai

Cho mình câu B nữa bạn

a,36*45/6*5=36/6*45/5=6*9=54

b,56*63/9*8=7*7/1*1=49

a) \(\frac{36\cdot45}{6\cdot5}\)

\(=\frac{6\cdot6\cdot5\cdot9}{6\cdot5}\)

\(=6\cdot9\)

\(=54\)

b) \(\frac{56\cdot63}{9\cdot8}\)

\(=\frac{7\cdot8\cdot9\cdot7}{9\cdot8}\)

\(=7\cdot7\)

\(=49\)

a,36*45/6*5                                                                                  b,56*63/9*8

=6*6*5*9/6*5                                                                                   =7*8*7*9/9*8  = 7*7/1 =49

=6*9/1

=54

\(\frac{36\times45}{6\times5}\)\(=\)\(\frac{6\times6\times9\times5}{6\times5}\)\(=\)\(54\)

\(\frac{56\times63}{9\times8}\)\(=\)\(\frac{8\times7\times9\times7}{9\times8}\)\(=\)\(49\)

cam on

36x5x64x5

{ 6 * 6 } *45

={6*45} *6

=270*6

=1620

\(\frac{36\times45}{6\times5}=\frac{6\times6\times5\times9}{6\times5}=\frac{6\times9}{1}=\frac{54}{1}=54\)

\(\frac{36x45}{6x5}\)

\(=\frac{6x6x5x9}{6x5}\)

\(=6x9\)

\(=54\)

\(36.45\div6.5\)

\(=36:6.45:5\)

\(=6.9\)

\(=54\)

    \(\frac{36\times45}{6\times5}\)

\(=\frac{6\times6\times5\times9}{6\times5}\)

\(=6\times9\)

\(=54\)

           ~Hok tốt~

a: \(=167\cdot\dfrac{67}{1000}+167\cdot\dfrac{33}{1000}=167\cdot\dfrac{1}{10}=\dfrac{167}{10}\)

a; (100 + 67) x 0,067 + (200 - 33) x 0,033

= 167 x 0,067 - 167 x 0,033

= 167 x (0,067 + 0,033)

= 167 x 0,1

= 16,7

b; 17,2 x 1,01 - 17 - 0,2

= 17,2 x 1,01 - (17 + 0,2)

= 17,2 x 1,01  - 17,2

= 17,2 x (1,01 - 1)

= 17,2 x 0,01

= 0,172