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Class 5 Mathematics - Interactive Learning Platform

🧮 Understanding Multiplication

Definition: Multiplication means repeated addition of the same number.

Example: 4 × 5 = 5 + 5 + 5 + 5 = 20
(4 groups of 5)

🎯 Try This:

3 × 7 =

🔄 Order in Multiplication

Rule: Changing the order of numbers doesn't change the product!

Example: 6 × 13 = 13 × 6 = 78

🎯 Complete the Pattern:

8 × 9 = 9 ×

🔢 Multiplying by 10s, 100s, 1000s

Rule: Add zeros to the end!

Examples:
23 × 10 = 230
23 × 100 = 2,300
23 × 1000 = 23,000

🎯 Quick Calculation:

45 × 100 =

⚖️ Doubling & Halving

Double one number, halve the other!

25 × 16
= 50 × 8
= 400

🎯 Nearest Multiples

Use easy numbers nearby!

4 × 19
= 4 × 20 - 4
= 80 - 4 = 76

🧱 Breaking Apart

Split numbers into parts!

32 × 8
= (30 + 2) × 8
= 240 + 16 = 256

📦 Box Method

Draw a grid to multiply!

23 × 45
Split: (20+3) × (40+5)
= 800 + 100 + 120 + 15

🎯 Strategy Practice:

Use doubling & halving for 14 × 25 =

Use nearest multiple for 6 × 29 =

🧭 Amazing Number Patterns

11 × 11 = 121
111 × 111 = 12,321
1111 × 1111 = 1,234,321

9 × 12 + 3 = 111
9 × 123 + 4 = 1,111
9 × 1234 + 5 = 11,111

🎯 Complete the Pattern:

9 × 12345 + 6 =

📏 Estimation Skills

Round numbers to make multiplication easier!

Example: 248 × 49 ≈ 250 × 50 = 12,500

🎯 Estimate:

Estimate 132 × 19 ≈

✏️ Practice Problems

1. 34 × 12 =

2. 250 × 6 =

3. 16 × 25 =

4. 68 × 45 =

5. 99 × 99 = <

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