Some problems require you to answer with a multi-digit subscript or exponent (superscript). This article explains how to answer those questions.
For multi-digit subscripts, use each subscript number in succession. For example, if you want the value to be 14, just click □₁ followed by □₄ , as shown below. The same goes for multi-digit exponents (superscripts), so if you want the value to be 25, just click □² followed by □⁵. 
When writing ten to the power of a number, Click the x10□ button and then select the exponents (superscripts). For example, if you want to write 10⁴⁵ you would click x10□ followed by the 4 and then the 5, as shown below.
To make this exponent (superscript) negative, Click the +/- button located at the bottom left of the calculator. For example, if you want to write 10⁻³ you would click x10□ followed by the +/- button and then the 3, as shown below.
You're all done!
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