Solve problems using percentages for comparison

What you'll learn

1. 1

   Imagine a chocolate bar 🍫 with 100 squares. Percent means 'out of 100', so every square is 1 percent!

2. 2

   How many squares are in a chocolate bar that is 100%?

3. 3

   Shade 25 squares on this 100-grid — that's 25%.

4. 4

   A school has 200 pupils. 40% walk to school. How many walk?

5. 5

   There are 300 books in a library. 60% are storybooks. How many are storybooks?

6. 6

   A bag has 50 marbles. 20% are red. How many red marbles?

7. 7

   A cake weighs 400 g. 25% is sugar. How many grams of sugar?