Question

(-0,24 -2,1 x ( -0.4 )) : (-1,2) + 0,3

Answer 1

$( - 0.24 - 2.1 \times ( - 0.4)) \div ( - 1.2) + 0 .3= - 0.2\\ 2.1 \times ( - 0.4) = - 0.84 \\ - 0.24 - ( - 0.84) = - 0.24 + 0.84 = 0.6 \\ 0.6 \div ( - 1.2) = - 0.5 \\ - 0.5 + 0.3 = - 0.2$