Question

4.Find the solution mentally.

Answer 1

3*-4=-12
4*-3=-12
-12*-1=12

Answer 2

Answer:

3×-4=a

a=-12

b×(-3)= -12

-3b= -12

b=-12

-12c=12

c=-1

d×24= -12

24d= -12

d= -1/2 or -0.5