Question

Efectuati:
2+4+6+........+246=?

Answer 1

Răspuns

2+4+6+...+246

=2(1+2+3+...+123

=2×(123×124/2)

=123×124

=15252

Answer 2

Salut !

$2 + 4 + 6 + ....... + 246 =$

$2 \times (1 + 2 + 3 + ..... + 123) =$

$2 \times [(123 \times 124):2] =$

$2 \times [15252:2] =$

$2 \times 7626 = 15252$

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