# Ignored subtraction

**URL:** <https://forum.kirupa.com/t/ignored-subtraction/165050>\
**Category:** Uncategorized\
**Created:** [October 7, 2005, 3:47am UTC](https://forum.kirupa.com/t/ignored-subtraction/165050 "2005-10-07T03:47:43Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![kdd](https://avatars.discourse-cdn.com/v4/letter/k/ecb155/32.png) [@kdd](https://forum.kirupa.com/u/kdd)\
**Post date:** [October 7, 2005, 3:47am UTC](https://forum.kirupa.com/t/ignored-subtraction/165050/1 "2005-10-07T03:47:43Z")

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i’m trying to subtract a very small value from given height.

myMC.\_height -= .05;

it just doesn’t subtract anything. so is flash ignoring to subtract it, possibly because i’ve too much in my flash file?  
then again, this works:

myMC.\_height -= .20;