Interactive online quiz: Mental division by multiples of ten

📚 Quick Study Guide

• 🔢 Dividing by 10 is the same as shifting the decimal point one place to the left. For example, $35 \div 10 = 3.5$.
• ➗ Dividing by 100 shifts the decimal point two places to the left. Example: $450 \div 100 = 4.5$.
• 💡 The number of zeros in the multiple of ten tells you how many places to shift the decimal. $5000 \div 1000 = 5$. Three zeros, three places.
• 🧠 When dividing whole numbers by multiples of 10, if the dividend (number being divided) ends in zero, you can 'cancel out' zeros from both the dividend and divisor. $600 \div 20 = 60 \div 2 = 30$
• 📝 If there are no zeros to cancel, you'll end up with a decimal answer. For instance $55 \div 10 = 5.5$.
• ➕ When you see division problems like $1200 \div 30$, divide $120 \div 3$ which gives you 40.
• ✨ Remember, practice makes perfect! Keep practicing and it will become second nature.

Practice Quiz

1. What is $450 \div 10$?
   1. 4.5
   2. 45
   3. 4500
   4. 0.45
2. Calculate $1200 \div 30$.
   1. 4
   2. 40
   3. 400
   4. 36000
3. Solve $630 \div 70$.
   1. 9
   2. 90
   3. 63
   4. 44100
4. What is $8000 \div 200$?
   1. 4
   2. 40
   3. 400
   4. 1600000
5. Determine $1500 \div 50$.
   1. 3
   2. 30
   3. 300
   4. 75000
6. Evaluate $240 \div 80$.
   1. 3
   2. 30
   3. 0.3
   4. 19200
7. Compute $3600 \div 400$.
   1. 9
   2. 90
   3. 0.9
   4. 1440000