Understanding Big Multiplication
Multiplying larger numbers might seem tricky, but it's just like regular multiplication with a few extra steps!
When we multiply a 2-digit number by a larger number, we're just adding the same number many times. The key is to break the problem into smaller, easier parts.
The Step-by-Step Method
1️⃣ Break it down: Split the larger number into tens and ones
2️⃣ Multiply parts: Multiply the 2-digit number by each part separately
3️⃣ Add them up: Combine all the partial products to get your final answer
Let's Practice Together!
Example 1: 24 × 36
Let's break this down using the step-by-step method!
Step
Calculation
Result
1
24 × 30
720
2
24 × 6
144
3
720 + 144
864
Great job! The answer is 864.
Example 2: 57 × 123
Now let's try an even bigger number!
Step
Calculation
Result
Total
1
57 × 100
5,700
5,700
2
57 × 20
1,140
6,840
3
57 × 3
171
7,011
Awesome! The answer is 7,011.
Parent Tips 🌟
- Use real-life examples: Calculate the total cost of multiple items (like 15 toys at $23 each) to make multiplication practical.
- Break it down visually: Draw rectangles divided into parts to represent the multiplication process (like the area model).
- Celebrate small wins: Praise your child for each correct step, not just the final answer, to build confidence.