contoh soal bilangan real

Operasi penjumlahan, pengurangan,perkalian.

a) Operasi penjumlahan

Contoh:

1.
4 + 6 = 10

2.
4 + (-6) = -2

3.
-4 + 6 = 2

4.
-4 + (-6) = -10

b) Operasi pengurangan

Contoh:

1.
6 - 4 = 2

2.
6 - (-4) = 6 + 4 = 10

3. -6 – 4 = -6 + (-4) = -10 $

c) Operasi perkalian

Contoh:

1.
6.4 = 24

2.
6.(-4) = -24

3.
(-6)(-4) = 24