[SOLVED] How to add numbers higher than one to variables

[ALUCARD]

At first I tried this but it didnt seem to work:

This does exactly what I need it to but in only increases by one:

Combining the two gives me a red error line:

Adding another plus sign removed the red line but still increased by one:

How do I add numbers higher than one?

[Albertos]

Grams += 10;

Grams = Grams + 10;

[ALUCARD]

Yes this worked.