# Length of answer from a Math Input computation

**URL:** <https://cl.desmos.com/t/length-of-answer-from-a-math-input-computation/2671>\
**Category:** Questions\
**Created:** [February 14, 2021, 5:39pm UTC](https://cl.desmos.com/t/length-of-answer-from-a-math-input-computation/2671 "2021-02-14T17:39:42Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Andrew\_Nelson](https://yyz1.discourse-cdn.com/flex031/user_avatar/cl.desmos.com/andrew_nelson/32/1961_2.png) [@Andrew\_Nelson](https://cl.desmos.com/u/Andrew_Nelson)\
**Post date:** [February 14, 2021, 5:39pm UTC](https://cl.desmos.com/t/length-of-answer-from-a-math-input-computation/2671/1 "2021-02-14T17:39:42Z")

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I want students to be able to type into a math input box the equation for solving compound interest and obtain an answer. However only the first 6 numeric values are shown so if the number is in the 10 thousands it will only show the first decimal value. Is there a way to define the length of the calculated value, or am I going to need to use a note and CL layer to provide the answer out to the penny using floor?

For this activity I am more concerned that they can enter the equation correctly, but it would be nice to have the students be able to provided a final answer, which can’t happen if they cannot see out to at least the hundredth position.

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**Author:** ![sergeballif](https://yyz1.discourse-cdn.com/flex031/user_avatar/cl.desmos.com/sergeballif/32/231_2.png) [@sergeballif](https://cl.desmos.com/u/sergeballif)\
**Post date:** [February 14, 2021, 11:19pm UTC](https://cl.desmos.com/t/length-of-answer-from-a-math-input-computation/2671/2 "2021-02-14T23:19:24Z")

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The only solution I can think of is the solution you mentioned. Make a calculation of the dollars and cents separately, and then pull them into the note for feedback. [Graphing Calculator](https://www.desmos.com/calculator/dxtxf81sgl)