In other words it divided by 7.3 and then multiplied the answer by 10 17. The problem here is that the calculator treated 7.3*10^17 as two numbers not one. To be very concrete, if you enter the problem above ( 8.7*10 -3 / 7.3*10 17) in the following way, Although these numbers are equivalent, it is VERY easy to make mistakes when entering numbers in this way. In other words, you may be tempted to enter the number 7.3*10 17 as 7.3*10^ 17. It may be tempting to use the ^ key (if you calculator has one) instead of the EXP key. If you entered it correctly, you should get the answer 1.1918*10 -20 which will look (on your calculator) like either 1.1918e-20 or 1.1918 -20. If you entered it correctly, you should get 1504. This should be entered into your calculator like this: If you are getting different answers, you are entering the numbers incorrectly. You may have a different key and you may need to hit 2 keys (2nd and the EE, for example) to use this function. In the examples below, EXP will be used to symbolize the exponent key. Entering Problems in Scientific NotationĮntering a problem that uses scientific notation is relatively straightforward as long as you remember that the exponent key means "times 10 to the." In other words you do NOT enter the 10. You must understand that a calculator of this type cannot write 4.5 7. If your calculator shows numbers in this way, 4.6 12 would mean 4.6*10 12 and 9.15 -05 means 9,1*10 -5. Thus 3.4*10 7 would be written as 3.4 07. If your calculator does not have a graphics screen the exponent is usually shown as a pair of smaller digits in the upper right hand corner of the screen. On a calculator with a graphics screen, the number 3.4*10 7 would be shown as 3.4e7 or 3.4E7. When a calculator shows a number in scientific notation it generally does it in one of two ways. In this case you would hit the 2nd key and THEN the key with the EE above it to enter an exponent. In other words, if your calculator has the symbol EE above a key in yellow, then there is probably a yellow key that says 2nd. If the EE or EEX or EXP is not on the button itself (it may be above the button in another color), you will need to hit an extra key to use it. These are used generally the only abbreviations used by manufacturers. What you are looking for is a button that has one of the following abbrieviations: EE, EEX, or EXP. Unfortunately, not all calculators have these buttons in the same place. Finding the KeysĪll scientific calculators have an exponent button and you must know where it is in order to use your calculator properly in chemistry. Use these calculators to aid you in solving questions and ensure that you are getting accurate answers.When doing scientific notation work on your calculator, you must first find the appropriate keys on your calculator, you must understand what your calculator is saying when it uses scientific notation and you must know how to enter problems on your calculator. Given below is a list of all possible math calculators that students might require depending on which grade they belong to. So pick a topic and start working on our free calculator. The links to the list of math calculators available on different topics have been arranged alphabetically for your convenience. For your convenience, the topic-wise mathematical calculators that are available have been arranged in alphabetical order. You can use math calculators to solve sums based on a variety of topics such as conversions, quadratic equations, arithmetic operations such as long division, percentage, area of different figures, the volume of 3D shapes, and so on. Ranging from simple arithmetic operations to complicated equation solving problems, this simple tool will help you complete your work faster and cross-check your answers. You can use this math solver tool to do your difficult calculations within seconds. A Math Calculator is a solution to this issue. Mathematics can be a daunting subject especially when it comes to solving complex calculations. Math calculators are a fantastic tool to use that can assist you with mathematical computations.
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