Example 1: If a bar graph shows 10 students who like apples and 15 students who like bananas, how many more students like bananas than apples?
Solution: 15 - 10 = 5 more students like bananas.
Example 2: In a bar graph, if one bar represents 20 books and another bar represents 30 books, what is the ratio of books in the second bar to books in the first?
Solution: The ratio is 30:20 or 3:2.
Example 1: A dot sheet has 4 rows and 5 columns of dots. How many dots are there in total?
Solution: 4×5=204 \times 5 = 204×5=20 dots.
Example 2: On a grid of dots, how many squares can be formed by connecting four dots?
Solution: You can form 6 squares.
Example 1: In a pie chart, if 25% of the chart represents the number of students who like pizza, what fraction of students like pizza?
Solution: 14\frac{1}{4}41 of the students like pizza.
Example 2: In a pictograph, each symbol represents 3 apples. If there are 5 symbols for apples, how many apples are there?
Solution: 5×3=155 \times 3 = 155×3=15 apples.
Example 1: If a cube is unfolded into a net, how many squares will the net have?
Solution: The net will have 6 squares.
Example 2: If a cube is folded from a net of 6 connected squares, how many edges will the resulting cube have?
Solution: The cube will have 12 edges.
Example 1: A net of a cuboid has 2 connected rectangles. How many more rectangles are needed to complete the cuboid?
Solution: You need 4 more rectangles to complete the net.
Example 2: How many faces does a cuboid have when unfolded into a net?
Solution: A cuboid has 6 faces when unfolded.