Question

Tính bằng cánh thuận tiện nhất:

     a) 475 - (75 - 36)

     b) 573 -(73 - 24)

Answer 1

a) \(475-\left(75-36\right)\)
              \(=475-75+36\)
              \(=\left(475-75\right)+36\)
              \(=400+36\)
              \(=436\)
b)\(573-\left(73-24\right)\)
              \(=573-73+24\)
              \(=\left(573-73\right)+24\)
              \(=500+24\)
              \(=524\)
Like nha, thks

Answer 2

a)475-(75-36)

  =475-75+36

  =(475-75)+36

  =400+36

  =436

b)573-(73-24)

=573-73+24

=(573-73)+24

=500+24

=524

Answer 3

a)475-(75-36)

  =475-75+36

  =(475-75)+36

  =400+36

  =436

b)573-(73-24)

=573-73+24

=(573-73)+24

=500+24

=524