Calculating standard form with a calculator
Standard form can be calculated on a scientific calculator with the ‘exponent’ button. The exponent button may be shown as EXP, EE or \(\times 10^x\).
For example, to input \(1.2 \times 10^7\), press:
This will appear as:
\(1.2^{07}\) or \({1.2~E7}\) or \(1.2 \times 10^{07}\)
Example one
To calculate \((4.56 \times 10^8) \times (3.7 \times 10^{5})\) using a calculator, we need to press the following buttons:
You will get an answer of \(1.6872 \times 10^{14}\)
Example two
Finding \((3.9 \times 10^{18}) \times (9.1 \times 10^{-5})\) on a calculator:
The answer is \(3.549 \times 10^{14}\)
Question
Using a calculator, find \((2.484 \times 10^{7}) \div (4.6 \times 10^{-4})\)
\(5.4 \times 10^{10}\)