Multiplication

In a Nutshell

Long multiplication splits each number into place-value parts, multiplies every pair, and adds the results together.

When you multiply $34 \times 26$ , you can think of it as four smaller multiplications using the grid method (also called the area model):

34 \times 26 = (30 + 4)(20 + 6)

Split each number by place value, put the parts along the top and side of a grid, find each partial product, then add them all up. The diagram below builds this grid for you.

First number: Second number:

Watch it work

Question: Use long multiplication to calculate $247 \times 36$ .

Have a go

Q1. Calculate $53 \times 27$ .

Q2. Calculate $186 \times 45$ .

Q3. A theatre has 32 rows with 48 seats in each row. How many seats are there in total?

Q4. Use the grid method to calculate $124 \times 13$ .