Quantitative Methods - Unit 1 > Basic Calculations
 
 

Worked example

Multiply 643 by 8

Here's a method - Click the 'Steps' to reveal the calculation

Step 1

6 4 3
8  x

5 1 4 4

Multiply the 8 by the 3 to give 24

Put the 4 in the answer and 'carry' the 2


Step 2

Multiply the 8 by the 4 to get 32

Add on the 'carried' figure, 2 to give 34

Put the 4 in the answer and 'carry' the 3


Step 3

Multiply the 8 by the 6 to get 48

Add on the 'carried' figure, 3, to get 51

You can write this number in the answer as the calculation is now finished