1000 x 12 = 12000
1000 times 12 is 12000. Keep the 12 and add the three zeros from 1000. It is the sum behind turning any monthly figure into a yearly one.
1,000 × 12 = 12,000
Adding 1,000 to itself 12 times gives the same answer.
Two ways to get 12000
1000 x 12 = 12000. The fastest route leaves the 12 alone and writes the three zeros that 1000 carries. The other route splits the twelve into ten and two. 1000 x 10 is 10000, 1000 x 2 is 2000, and 10000 plus 2000 is 12000.
That split is the general trick for the whole twelve times table. Multiply by ten, multiply by two, add the two results.
Monthly into yearly
Twelve months make a year, so this is the multiplication behind an annual total. A thousand a month in rent, salary or subscription revenue is 12000 a year. Read backwards, an annual 12000 is 1000 a month, which is why the number turns up so often in budgets.
Same digits, different size
Three sums use the same 12 and differ only in zeros.
- 100 x 12 is 1200.
- 1000 x 12 is 12000.
- 10000 x 12 is 120000.
Each step up adds one zero. Confirm which one you actually need before you write it down, and see the multiplication answers index for the neighbouring sums.