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Sifat Operasi Hitung Bilangan Bulat

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  1. Sifat Kumulatif Penjumlahan

Contoh:

(-18) + 9 = 9 + (-18)

-9 = -9

a + b = b + a


2. Sifat Komutatif Perkalian

Contoh:

-8 x 9 = 9 x (-8)

-72 = - 72

a x b = b x a

3. Sifat Asosiatif Penjumlahan

Contoh:

(8+15) + 5 = 8 + (15+5)

23 + 5 = 8 + 20

28 = 28

(a + b) + c = a + (b+c)

4. Sifat Asosiatif Perkalian

Contoh:

(4x5) x 3 = 4 x (5x3)

20 x 3 = 4 x 15

60 = 60

(axb) x c = a x (bx c)

5. Sifat Distributif

Perkalian terhadap penjumlahan

Contoh:

4 x (5+2) = (4 x 5) + (4 x 2)

4 x 7 = 20 + 8

28 = 28

a x (b + c) = (a x b) + (a x c)


Perkalian terhadap pengurangan

8 x (6-3) = (8 x 6) (8 x 3)

8 x 3 = 48 - 24

24 = 24

a x (b c) = (a x b) (a x c)

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