Question

36×76-24×39 

1992-(992+95)

920-[24-(5-3)^2]

5x-3=2002

10+2x=4^5 : 4^3

Answer 1

 36 x 76 - 24 x 39 

=2736 - 936 

=1800 

  1992 -(992+95)

= 1992 - 1087 

=903

 

Answer 2

920 - [24 - (5-3)² ]

=920 -[ 24- 4]

=920 20

=900

5x - 3 = 2002

5x      = 2002 +3

5x      = 2005 

  x      = 2005 : 5 

  x = 401

Answer 3

10 + 2x = 4⁵ : 4³ 

10 + 2x = 4²

       2x  = 16 - 10 

      2x   = 6

       x     = 6:2

      x     = 3