Nah, I have better math tricks.
12835 + 9172645 = >12385
If you don’t know the answer to an addition problem, just take the number that’s the least value and put a greater than sign to the left of it. I’ve only tried this for problems where both numbers are positive.
And also…
81763 - 1825 = <81763
It’s the same thing as the addition one, but just take the number of greater value and put a less than sign to the left of it. Also, I’ve only tried this for positive numbers.