What Does It Mean to Multiply by 1-digit Numbers?
Multiplication is like repeated addition!
When we multiply a number by a 1-digit number (like 2, 5, or 9), we're adding that number to itself
multiple times. For example, 4 × 3 means 4 + 4 + 4 = 12.
How to Multiply by 1-digit Numbers
1️⃣ Write the numbers vertically with the larger number on top
2️⃣ Multiply each digit of the top number by the bottom number
3️⃣ Carry over if the product is 10 or more
Let's Practice Together!
Example 1: 23 × 4
Let's break it down:
2 3
× 4
First multiply 3 × 4 = ___
Then multiply 20 × 4 = ___
Now add them together: 12 + 80 = ___
Example 2: Try It Yourself!
What is 47 × 5?
Parent Tips 🌟
- Use real-world examples: Ask your child to calculate totals when shopping (e.g., "If one toy costs $6, how much would 4 toys cost?").
- Practice with flashcards: Create multiplication flashcards for quick recall of basic facts that make larger problems easier.
- Break it down: Encourage your child to break problems into smaller, manageable parts (like we did in Example 1).