Question

Thực hiện phép tính:

A) 27.75+ 25.27-150

B) 12:{390:[500-(125+35.7)]}

Answer 1

a)27.75+25.27-150

=27.(75+25)-150

=27.100-150

=2700-150

=2550

b)12:{390:[500-(125+35.7)]}

=12:{390:[500-(125+245)]}

=12:{390:[500-370]}

=12:{390:130}

=12:3

=4

Answer 2

a, 27.75+ 25.27-150                                     b,

= 27.(75 +25) -150

=27.100-150

=2700-150

=2550

Answer 3

a} 2550

b} 4

Answer 4

53,02

4