Відповідь:

14 * 38 - 38 * 24 = 38 * (14 - 24) = -380

-8 * 13 - 2(-8) = -8 * (13 + 2) = -120

1,12 * 37 - 3,12 * 37 = (1,12 - 3,12) * 37 = -2 * 37 = -74

-4,8(-2,3) + 5,8(-2,3) = (-4,8 + 5,8)(-2,3) = 1 * (-2,3) = -2,3

-8/8 * (-6,81) + (-8,19)(-3/8) = -1 * (-6,81) + (-8,19) * (-3/8) = 6,81 + 2,46 = 9,27

3/10 * (-2 1/3) + 3/10 * 1 1/3 = (-7/3) * (3/10) + (4/3) * (3/10) = (-7/10) + (4/10) = -3/10