Question

4.
\

$$\begin{array}{r} 389 \\\\ \\times \\ \\ \\ \\ 4 \\\\ \\hline \\end{array}$$

Explanation:

Step1: Multiply the units digit

Multiply 9 (units digit of 389) by 4: $9\times4 = 36$. Write down 6 and carry over 3.

Step2: Multiply the tens digit

Multiply 8 (tens digit of 389) by 4: $8\times4 = 32$. Add the carried over 3: $32 + 3 = 35$. Write down 5 and carry over 3.

Step3: Multiply the hundreds digit

Multiply 3 (hundreds digit of 389) by 4: $3\times4 = 12$. Add the carried over 3: $12 + 3 = 15$. Write down 15.

Step4: Combine the results

Combining the digits we got, we have 1556.

Answer:

1556