Question

5.2*(-3)+51*(-0.4)-(-7.8)*(-2)=?

Answer 1

5.2*(-3)+51*(-0.4)-(-7.8)*(-2)=-15,6-20,4-15,6=-51,6

Answer 2

$5.2(-3)+51(-0.4)-(-7.8)(-2) = -15.6 - 20.4-15.6=-56.1$