Question

Thực hiện phép tính :

a) ( –95). (2 – 125) – 125. 95

b) | –345| : | –5| + |27| . (–3)

Answer 1

a)(-95).(2-125)-125.95

=(-95).(-123)-125.95

=95.123-125.95

=95(123-125)

=95.(-2)

=-190

Answer 2

Thực hiện phép tính:

a) (-95).(2-125) -125.95

=(-95).2+(-95).(-125) -125.95

= -190 +95.125 -125.95

= -190 + (95.125 -95.125) = -190

b) \(|\)-345\(|\): \(|\)-5\(|\) + \(|\)27\(|\). (-3)

= 345 : 5 + 27. (-3)

= 69 - 81 = -12

Answer 3

a) ( –95). (2 – 125) – 125. 95

=( –95). ( –123) – 11875

=11685 – 11875

= – 190

b) | –345| : | –5| + |27| . (–3)

= 345 : 5 + 27 . (–3)

= 69 +(- 81)

= -12