Question

[Pham Trong Bach]

Thực hiện phép tính:

a, A = 3 2 . 5 2 . 4 3 : 2 3 . 3 2 . 2005 0

b, B = 194.12+6.437.2+3.369.4

c, C =  5 16 + 16 5 3 17 - 3 10 2 4 - 4 2

d, D =  5 2007 - 5 2006 : 5 2005 . 5

Answer 1

[Cao Minh Tâm]

a, A =  3 2 . 5 2 . 4 3 : 2 3 . 3 2 . 2005 0

=  3 2 . 5 2 . 2 6 : 2 3 . 3 2 . 1

=  3 . 5 2 . 2 3 = 3.25.8 = 600

b, B = 194.12+6.437.2+3.369.4

= 194.12+437.12+369.12

= 12.(194+437+369)

= 12.1000 = 12000

c, C =  5 16 + 16 5 3 17 - 3 10 2 4 - 4 2

=  5 16 + 16 5 3 17 - 3 10 4 2 - 4 2

=  5 16 + 16 5 3 17 - 3 10 . 0 = 0

d, D =  5 2007 - 5 2006 : 5 2005 . 5

=  5 2007 - 5 2006 : 5 2006

=  5 2006 . 5 - 1 : 5 2006 = 4