Question

plz answer: 1+2+3+4+5+6+7+8.........................+98+99+100 = ?​

Answer 1

Answer:

5050

Step-by-step explanation:

split the numbers into two groups (1 to 50 and 51 to 100),

he could add them together vertically to get a sum of 101.

we see that the final total would be 50(101) = 5050.

Answer 2

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Answer:

(100+1)×100\2=5050