= (2 × 4) + (2 × 5)
= 8 + 10 = 18
2. (10 + 12) × 3
= (10 × 3) + (12 × 3)
= 30 + 36 = 66
3. (-7) × (6 + (-8))
= ((-7) × 6) + ((-7) × (-8))
= (-42) + 56 = 14
4. ((-15) + 9) × 3
= ((-15) × 3) + (9 × 3)
= (-45) + 27 = -18
Baca Juga: Cara Penyusunan Operasi Hitung Bilangan Sifat Distributif, Materi Kelas 4 SD