Unit 6 Section 2 : Long Multiplication
In this section you will see some different ways of multiplying together numbers which are bigger than 10.
You have probably seen long multiplication before. The slideshow below will remind you how to multiply 35 by 19 using long multiplication. Use the left and right arrows to view the slideshow.
Long Multiplication
But there are many other ways of doing this multiplication.
(1) Napier's Method
Follow the stages in the slideshow below, doing each stage on paper as you go through.
Napier's Method
(2) Russian Multiplication
Follow the stages in the slideshow below, doing each stage on paper as you go through.
Russian Multiplication
(3) Box Method
This method is quite simple and can be explained without the need for a slideshow.
Box Method
Exercises
Work out the answers to the questions below and fill in the boxes. Click on the
button to find out whether you have answered correctly. If you are right
then will appear and you should move on to the next
question. If appears then your answer is wrong. Click
on to clear your original answer and have another go.
If you can't work out the right answer then click on
to see
the answer.
Question 1
Find the answers to the multiplications below by any method (but not using a calculator).
Question 2
Find the answers to the multiplications below by Russian Multiplication.
Question 3
Find the answers to the multiplications below by the box method or Napier's method.
You have now completed Unit 6 Section 2
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Produced by A.J.Reynolds January 2001