Week 8: P3 Math - Summer Challenge (P4 TImes & Divide)

2. Calculate: 33 × 25 = ？

3. Calculate: 76 × 24 = ？

4. Calculate: 66 × 45 = ？

5. Calculate: 38 × 320 = ？

6. Calculate: 728 × 42 = ？

7. Calculate the following in a simpler way: 50 × 78 × 2 = ？

• 50 × 78 × 2 = 50 × 80
• 50 × 78 × 2 = 100 × 78
• 50 × 78 × 2 = 390 × 2
• 50 × 78 × 2 = 100 × 156

8. Calculate the following in a simpler way: 6 × 45 × 5 = ？ × ？ = ？ (Use "," to separate the numbers)

9. Calculate the following in a simpler way: 17 × 60 × 5 = ？

• 17 × 60 × 5 = 100 × 60
• 17 × 60 × 5 = 60 × 175
• 17 × 60 × 5 = 17 × 5
• 17 × 60 × 5 = 17 × 300

10. Calculate the following in a simpler way: 4 × 7 × 250 = ？

• 4 × 7 × 250 = 4 × 280
• 4 × 7 × 250 = 1750 × 7
• 4 × 7 × 250 = 1000 × 7
• 4 × 7 × 250 = 4 × 1000

3. 6 × (72 − 54) = ?