Question

V 1251°. Выполните умножение: 1) 10•(-4); 2)-10•4; 3)-10•(-4); 4) 10•4.​

Answer 1

$10 \times ( - 4) = - 40 \\ - 10 \times 4 = - 40 \\ - 10 \times ( - 4) = 40 \\ 10 \times 4 = 40$