Buktikan bahwa 3 – (-1) = 4​

3 – (-1) = 4

3 + 1 = 4

4 = 4

kunci perkalian:

+ + = +

+ – = –

– + = –

– – = +

semoga membantu

Jawaban:

3 – (-1) = 4

3 + 1 = 4

Karena – × – = +