What does sum mean in mathematics? What does sum mean in mathematics?</p><p>1 and sum refer to new things obtained by adding two or more things with the same attributes, and can also be narrowly under

What does sum mean in mathematics? What does sum mean in mathematics?

1 and sum refer to new things obtained by adding two or more things with the same attributes, and can also be narrowly under

What does sum mean in mathematics? What does sum mean in mathematics?

1 and sum refer to new things obtained by adding two or more things with the same attributes, and can also be narrowly understood as the result of adding two numbers.

2. Harmony is a new thing obtained by adding things with the same attributes, such as 2 meters +3 meters =5 meters; 30 kg +50 kg =80 kg. But things with different attributes and different units cannot be added by numbers or simply added, such as 5 m/s+10 s; 5 minutes+1 hour.

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