Question

Помогите
2020202020202020202020200202020202​

Answer 1

См. в приложении.

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При умножении:

( - ) × ( - ) = ( + )

( - ) × ( + ) = ( - )

( + ) × ( - ) = ( - )

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5 * (- 2) = - 10

(- 7) * (- 3) = 21

4 * (- 1) = - 4

(- 8) * 2 = - 16

2 * (- 8) = - 16

(- 2) * 5 = - 10

7 * 3 = 21