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The partition method of multiplication involves breaking numbers into parts. This method is useful in making a multiplication easier to manage. To use this method successfully you need to be able to:

• break down (partition) a number using your understanding of place value
• recall times-tables up to 9 x 9
• multiply by multiples of powers of ten

1. Partition the number using the place values of each digit.

2. Multiply each of these numbers by the 1-digit number and align the answers to the right.

3. Add the product to give the answer.

Use the partition method to multiply a 3-digit number by a 2-digit number.

1. Partition the smaller number using the place values of each digit. Eg, to work out 352 × 27 multiply 352 by 20 and multiply 352 by 7

2. Add the two answers.

Try this quiz to practise multiplication using the partition method. You might need a pen and paper to help with workings out.

When you do not have a calculator, the partition method for multiplication is one way of calculating an answer. It is a skill used in many jobs such as builders, suppliers and flooring specialists. It is an invaluable skill for the world of work.

• A builder might use the partition method of multiplication to calculate the quantity of materials needed to build an entire housing estate.
• A flooring specialist might use it to work out the area of flooring needed for a room when replacing carpets.