Final Answer:
1. 8 × 9 = 72
8 × (3 + 6) = (8 × 3) + (8 × 6) = 24 + 48 = 72
8 × 9 = 72
2. 12 × 3 = 36
12 × (2 + 1) = (12 × 2) + (12 × 1) = 24 + 12 = 36
12 × 3 = 36
3. 4 × 13 = 52
4 × (10 + 3) = (4 × 10) + (4 × 3) = 40 + 12 = 52
4 × 13 = 52
4. 14 × 6 = 84
14 × (5 + 1) = (14 × 5) + (14 × 1) = 70 + 14 = 84
14 × 6 = 84
5. 3 × 16 = 48
3 × (10 + 6) = (3 × 10) + (3 × 6) = 30 + 18 = 48
3 × 16 = 48
6. 17 × 5 = 85
17 × (10 + 5) is incorrect — better: 17 × (10 + 5) would be 17×15, not 17×5.
Correct split: 17 × 5 = (10 + 7) × 5 = (10 × 5) + (7 × 5) = 50 + 35 = 85
So:
17 × 5 = (10 + 7) × 5 = (10 × 5) + (7 × 5) = 50 + 35 = 85
17 × 5 = 85
Parent Tip: Review the logic above to help your child master the concept of distributive property of multiplication worksheet third grade.