Materi Bilangan Bulat

OPERASI BILANGAN BULAT

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​Bilangan Bulat ada 2 yaitu bilangan bulat positif dan bilangan bulat negatif.

Bilangan bulat apabila dijumlah dengan lawannya maka hasilnya 0 (nol)​

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-7 + 7 = 0

10 + (-10) = 0​

-9 + 9 = 0​

Contoh:

-12 + (-15) = . . .

​Negati dan Negatif

Contoh:

15 + (-20) = . . .

​Positif dan Negatif

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-12 + (-15) = -27

​Sama-sama negatif maka langsung ditambah jadi hasilnya -27.

​Penjelasan

15 + (-20) = -5

15 + (-15 + (-5)

15 + (-15) = 0 sisanya -5​

​Penjelasan

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