Two (2) Digit Lattice Multiplication for Kids

In this page, let us see how to multiply 2 two-digit numbers in mathematics using lattice multiplication.

lattice

Let us learn multiplying 12 and 11. Write one number across the top and the other number down the right side, as given below.

lattice

Multiply each digit across the top by each one on the right. Let's start by multiplying 1 and 1.

Find the box where 1 and 1 intersect. The product of the two digits 1 and 1 is 1. So write 1 where both the numbers intersect, in this lattice multiplication. Write 0 in the Tens place as there is no Tens value.

lattice

Continue the math problem by finding the box where 2 and 1 intersect and do the same as above.

4x5 = 20

Find the box where the two numbers 1 and 1 intersect and repeat the above step.

lattice

Find the box where the two digits 2 and 1 intersect and repeat the same step.

4x5 = 20

Finally, add the numbers of the diagonal stripes. Start from the bottom.

4x5

4x5

So multiplying 12 and 11, we get the answer as 132.
Learning lattice multiplication is made easy here.

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