The Zero Magic Trick
Did you know there's a special trick when multiplying numbers that end with zeros?
When numbers have zeros at the end, we can use a shortcut to make multiplication much easier! It's like having a math superpower.
How to Multiply Numbers with Ending Zeroes
1️⃣ Count the zeros at the end of both numbers
2️⃣ Multiply the numbers without the zeros first
3️⃣ Add all the zeros back to your answer
Let's Try Some Examples!
Example 1: 30 × 400
1. Count the zeros: 30 (1 zero) × 400 (2 zeros) → Total zeros = 3
2. Multiply without zeros: 3 × 4 = 12
3. Add the zeros back: 12 + 000 = Click to reveal answer
Example 2: 500 × 60
1. Count the zeros: 500 (2 zeros) × 60 (1 zero) → Total zeros = 3
2. Multiply without zeros: 5 × 6 = 30
3. Add the zeros back: 30 + 000 = Click to reveal answer
Parent Tips 🌟
- Real-world practice: Have your child calculate totals when shopping (e.g., "If one toy costs $20, how much for 30 toys?").
- Zero hunt game: Make it fun by having them spot numbers with ending zeros in everyday life (license plates, prices, etc.).
- Visual aid: Use graph paper to show how adding zeros expands the number to the right.