Question

Using brackets solve, $14\times 109$ .

Answer 1

Simplification:

We have $14\times 109$

We can also write the above expression as

$$\begin{gathered} 14\times 109=(10+4)\times (100+9) \\ =10\times 100+10\times 9+4\times 100+4\times 9\left\{\text{Since}\left(a+b\right)\text{×}\left(c+d\right)\text{=a×c+a×d+b×c+b×d}\right\} \\ =1000+90+400+36 \\ =1526 \end{gathered}$$

Hence $14\times 109=1526$