ALTOGETHER OR ALL TOGETHER? Altogether means `completely

ALTOGETHER OR ALL TOGETHER?
Altogether means 'completely, in total'.
All together means 'all the things/persons as a group'.
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altogether
How much is it altogether?
There were ten students altogether.
We can save the world altogether.
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all together
Are you travelling all together?
The ten students worked all together.
We can save the world all together.