Real-world examples of percentages for Grade 6

📚 Quick Study Guide

• 🔢 A percentage is a way of expressing a number as a fraction of 100. The word percent means 'per hundred.'
• ➗ To convert a fraction to a percentage, divide the numerator by the denominator and then multiply by 100.
• 🛍️ To find a percentage of a number, multiply the number by the percentage (expressed as a decimal). For example, to find 20% of 50, multiply 50 by 0.20.
• ➕ Percent increase is calculated as: $\frac{\text{New Value - Original Value}}{\text{Original Value}} \times 100$
• ➖ Percent decrease is calculated as: $\frac{\text{Original Value - New Value}}{\text{Original Value}} \times 100$
• 💡 Remember to always include the percentage symbol (%) after the number.

Practice Quiz

1. What is 25% of 80?
   1. 10
   2. 20
   3. 30
   4. 40
2. A store is having a 20% off sale. If a shirt originally costs $25, what is the sale price?
   1. $5
   2. $20
   3. $20.50
   4. $30
3. In a class of 30 students, 60% are girls. How many girls are in the class?
   1. 12
   2. 15
   3. 18
   4. 20
4. John wants to save 15% of his $200 allowance each month. How much money will he save?
   1. $15
   2. $20
   3. $30
   4. $35
5. A recipe calls for 200g of flour, but you want to increase the recipe by 50%. How much flour do you need?
   1. 250g
   2. 300g
   3. 350g
   4. 400g
6. A baseball team won 70% of their 40 games. How many games did they win?
   1. 24
   2. 26
   3. 28
   4. 30
7. If you got 80% on a 50-question test, how many questions did you answer correctly?
   1. 30
   2. 35
   3. 40
   4. 45