Ativa AT-10 Operation Manual

a long-life, Lithium battery to assure uninterrupted service. (See “Battery Replacement” below for change-out procedure.) Power On and Off [ON] Pressing this key and holding it a second turns the calculator on. This key is also used to clear all calculations, which is accomplished with a tap. [OFF] Turns the calculator off. The unit also has an auto power-off feature which turns the unit off after 5 minutes of non-use. [CE] Tapping this key clears only the last entry without clearing the problem. Note: The Lithium battery in this calculator should be replaced approximately every 2 years. Batter ...

To find a square root, enter the number and press the square root key. 620 [√] [=] 24.8997991959 Currency Exchange To determine a currency exchange rate, you need to enter the current exchange rate value. For example, if the Euro was currently pegged at 1 Foreign = 0.9822 of the U S Dollar, here is how you would do the calculations: 1. Select and hold down the [USD] key until “0” shows. 2. Enter the USD value (0.9822). 3. Press the [USD] key setting the value. How much is $150 in the Euro currency? Enter 150 Press [USD] Press [Foreign] 152.72 How much is 275 in the Euro currency worth in U S Dollars? Enter 275 Pre ...