Page 7 - Matematika SD-MI Kelas 5. Bab 1PART

4. (35 + 45) + 25 = .... + (45 + 25)
5. (200 + 50) + 15 = 200 + (50 + ....)
6. (120 + 40) + .... = 120 + (40 + 60)
7. (75 + 25) + .... = 75 + (25 + 200)
8. (.... + 400 ) + 200 = 150 + (400 + 200)
9. (.... + 250 ) + 300 = 750 + (250 + 300)
10. (325 + ....) + 100 = 325 + (75 + 100)

b. Sifat asosiatif pada perkalian

Gambar 1.2 operasi sifat asosiatif
Buktikan

(2 × 3) × 5 = 2 × (3 × 5)

3 3
5
2 5
(2 × 3) × 5 = 2 × (3 × 5)

30 = 30

Bilangan Bulat 7