Math w/o calculators.
Finding anti logs.
Quick method : 10 ^ 0.x = 2 ^ y
Where y is the last digit of 7 * x.
Example 10 ^ 0.9 ?
7 * 9 = 6[3]. And 2 ^ 3 = 8.
Therefore anti log of 0.9 = 8.
Try it with other numbers.
Finding anti logs.
Quick method : 10 ^ 0.x = 2 ^ y
Where y is the last digit of 7 * x.
Example 10 ^ 0.9 ?
7 * 9 = 6[3]. And 2 ^ 3 = 8.
Therefore anti log of 0.9 = 8.
Try it with other numbers.