Answer:
300°
Step-by-step explanation:
This may seem really strange and counterintuitive to you, but when you turn 1° 300 times, you have turned 300°.
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If you don't want to add it up ...
1° + 1° + 1° ... + 1° . . . . . 300 times
you can use multiplication. It was invented as a shortcut to repeated addition:
1° × 300 = 300°