Answer:
1. 12 × (5×2) associative property
2. 15+ 10= 10 +15 commutative property
3. 9×0=0
4.8×(7+6)= (8×7) + (8 × 6)
5. 11+(4+6)=(11+4) + 6 associative property
Step-by-step explanation:
i dont know the answer sa 3,4 properties, try searching"properties of multiplication or addition"
