Question

$$(-3) (-4) (12) (-1) = .....$$

Answer 1

$$\textbf{Step-1: Multiplication of first two digits}$$

$$(-3)\times(-4)\times(12)\times(-1)$$

$$=12\times(12)\times(-1)$$

$$\textbf{Step-2: Multiplication of remaining terms}$$

$$12\times(12)\times(-1)$$

$$12\times(-12)=-144$$

$$\textbf{Hence , the solution is -144.}$$