ignore the bluetooth stuff at the bottom
1.6
Being able to work without a calculator will give you a deeper understanding of maths and arithmetic, and the methods (either using your brain or on paper) used to reach a correct answer. A calculator won't show you how to work the calculation, but will give an answer at the touch of a button or two. It is best to learn without a calculator first, before relying on a calculator.
The only way, without a calculator, that I know of is long division.
How can you calculate the square root of 1.8E-5 without a calculator?
No. However, alike anything else in life. If you use a calculator for everything, then the most remedial calculations may become hard to do without a calculator. It is good practise to do without a calculator where possible
You use the square root key on a calculator, or the sqrt() function in Excel. If you want to do it without a calculator, there are several methods; one that is fairly straightforward is trial and error: just try squaring different numbers until you get close enough. (Other methods may be faster, but are still iterative - you have to repeat the same steps several times, until you get sufficient precision.)
0.75 = 3/4. You don't need a calculator for that!
4690 without using a calculator !
540... without using a calculator !
4200 - without the aid of a calculator !
480... WITHOUT using a calculator !
There are plenty of ways to get answers without images. You can read for your answers or listen to audiotapes for example.