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This question already has an answer here:

I have a problem that's kind of weird. The numpad operation keys (+, -, *, /) dont work as expected. I cant do the math when transforming objects.

For example hitting G while object is selected, then X then 2 + 2 doesn't move the object 4 units on the X axis, instead - it moves it 22 units, like if that + hit was ignored.

I've noticed it when moving from Blender 2.68 to later versions. (actually after installing 2.68 after the installation of 2.75, the 2.68 also works that way)

Is there anyway to get back the old functionality?

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marked as duplicate by David Sep 5 '15 at 15:08

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  • $\begingroup$ Are you sure that your NUMPAD is turned ON ? $\endgroup$ – Igor Tatarnikov Sep 5 '15 at 12:20
  • $\begingroup$ @IgorTatarnikov If you mean "NumLock" - yes, it's on. $\endgroup$ – luke1985 Sep 5 '15 at 12:21
  • $\begingroup$ I actualy tried myself what you was talking about, I can't do this either nor with Numpad nor with the Alphanumeric Keyboard $\endgroup$ – Igor Tatarnikov Sep 5 '15 at 12:40
  • $\begingroup$ @IgorTatarnikov That's what I supposed to be. Check out my answer - theres some kind of solution to this. $\endgroup$ – luke1985 Sep 5 '15 at 13:36
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In Blender 2.75, you have to use expressions.

To evaluate any expression, you have to start with =

In your example: GX=2+2

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The kind of "solution" to this is to press the * (star key) on the numpad while in the input mode. For example - with object selected pressing GX 2 * +2 will translate the object 4 units on the X axis. The star somehow changes the input mode.

This worked in 2.75a, but not 2.68 - it looks like something got screwed when installing 2.75a. My guess is - it should work from 2.69 onwards.

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