Question

a) (-154).(-235)+154.(-35)
b) 19.(-43)+(-20).-(-40)

 

Answer 1

(-154) . (-235)+154.(-35)
= 154 . 200
= 30800

Answer 2

(-154) . (-235)+154.(-35)

= 154 . 200

= 30800

Answer 3

\(a,=154.235+154.\left(-35\right)\\ =154.\left[235+\left(-35\right)\right]\\ =154.200=30800\)

Answer 4

a) (-154).(-235)+154.(-35)

= 154 . 200

= 30800

 b) 19.(-43)+(-20).-(-40)

= (-817 ) + (-800)

=1617