Question #fc85d

1 Answer
Max G.
Feb 7, 2018

2700000

Explanation:

Here's a handy shortcut for doing problems with lots of extra zeroes in your head:

  1. Count how many zeroes each number has on the end, then add them together. 300 has 2 zeroes, 9000 has 3. Add them to get 5. Save this for later.
  2. Multiply the numbers together WITHOUT the zeroes. Removing zeroes, we now have the numbers 3 and 9. #3*9=27#.
  3. Add the zeroes on the end. 2700000
Related questions
Impact of this question
908 views around the world
You can reuse this answer
Creative Commons License