Respuesta :

Jieep
Write this vertically

30+4
20+8

Now Multiply 4x8, 8x30, 20x4, and 20x30

As you can see, we are cross multiplying.

After you multiplied those all, you will get :

4x8=32, 8x30=240, 20x4=80, 20x30=600

Add your products up.

Answer is 982.

Hope I helped!