Question

Using lattice method of multiplication, find $1,100\times 2.$

• A. 2200

Answer 1

The correct option is A 2200
To find $1,100\times 2$ using lattice method of multiplication, we need $4\times 1$ rectangular table on which digits of $1,100$ and $2$ will be arranged as shown in below figure,
Now, multiplying digits on top with the digits on the right of the rectangle one by one
Placing the ones digits of their product on the left and tens digit on the right of the diagonal of respective smaller rectangle as shown in below figure,
Now, adding the digits along the diagonals as shown in below figure,
Finally taking the simplified digits from left to bottom in order will give the product as shown in below figure,
Therefore, $1,100\times 2=2,200$