Numbers can be multiplied together using the column method which involves writing one number underneath the other in a similar way to column addition and subtraction.

If the numbers are too high or too difficult to subtract in your head, write them down in columns. Separate the numbers into ones, tens, hundreds and thousands. List the numbers in a column and ...

Years ago, I wrote a column about being a counter. I’m still nosy. And I am still afflicted with the counting compulsion – or for any useless factoids involving numbers. I like to know how many people ...