📚 Topic Summary
Dividing by 10, 100, or 1000 is easier than you think! When you divide by 10, you simply move the decimal point one place to the left. For 100, you move it two places, and for 1000, you move it three places. If you don't see a decimal, it's understood to be at the end of the number. For example, $450 \div 10 = 45$, $450 \div 100 = 4.5$, and $450 \div 1000 = 0.45$. These simple tricks can save you time and effort!
🧠 Part A: Vocabulary
| Term |
Definition |
| A. Quotient |
1. The number you are dividing by. |
| B. Dividend |
2. The answer to a division problem. |
| C. Divisor |
3. A system of numbers based on powers of ten. |
| D. Decimal Point |
4. The number being divided. |
| E. Base-Ten System |
5. A symbol used to separate the whole number part from the fractional part. |
Instructions: Match the term to the correct definition.
📝 Part B: Fill in the Blanks
When you divide by 10, you move the decimal point one place to the ________. When dividing by 100, move the decimal point ________ places to the left. Dividing by ________ means moving the decimal point three places to the left.
💡 Part C: Critical Thinking
Explain how dividing by 10, 100, and 1000 relates to the base-ten number system and why this makes mental division easier. Give an example to illustrate your point.
✅ Answer Key
Part A: Vocabulary
- 🔍 A - 2
- 🧪 B - 4
- 🧬 C - 1
- 🌍 D - 5
- 🔢 E - 3
Part B: Fill in the Blanks