Solve 10*420

$$10 \times 420$$

Evaluate

$$4200$$

Steps For Long Multiplication

First line up the numbers vertically and match the places from the right like this.

$$\begin{array}{c}\phantom{\times99}10\\\underline{\times\phantom{9}420}\\\end{array}$$

Now multiply the first number with the 1^{st} digit in 2^{nd} number to get intermediate results. That is Multiply 10 with 0. Write the result 0 at the end leaving 0 spaces to the right like this.

$$\begin{array}{c}\phantom{\times99}10\\\underline{\times\phantom{9}420}\\\phantom{\times9999}0\\\end{array}$$

Now multiply the first number with the 2^{nd} digit in 2^{nd} number to get intermediate results. That is Multiply 10 with 2. Write the result 20 at the end leaving 1 spaces to the right like this.

$$\begin{array}{c}\phantom{\times99}10\\\underline{\times\phantom{9}420}\\\phantom{\times9999}0\\\phantom{\times9}20\phantom{9}\\\end{array}$$

Now multiply the first number with the 3^{rd} digit in 2^{nd} number to get intermediate results. That is Multiply 10 with 4. Write the result 40 at the end leaving 2 spaces to the right like this.

$$\begin{array}{c}\phantom{\times99}10\\\underline{\times\phantom{9}420}\\\phantom{\times9999}0\\\phantom{\times9}20\phantom{9}\\\underline{\phantom{\times}40\phantom{99}}\\\end{array}$$

Now add the intermediate results to get final answer.

$$\begin{array}{c}\phantom{\times99}10\\\underline{\times\phantom{9}420}\\\phantom{\times9999}0\\\phantom{\times9}20\phantom{9}\\\underline{\phantom{\times}40\phantom{99}}\\\phantom{\times}4200\end{array}$$

Factor

$$2^{3}\times 3\times 5^{2}\times 7$$