Question

1+2+
3+4+
+5+6+7+8+9+10​

Answer 1

Here is a shortcut trick for ALL SUCH QUESTIONS

SUM OF N WHOLE NO. = (N)(N+1)/2

=10(10+1)/2

=10*11/2

=110/2

=55

Here is your answer

Plz mark brainliest

You can also check on calculator if you doubt

It works for any amount of no.

Answer 2

55 is answer

please mark me brainlist

have a great day my dear friend