Step by step
The question
Question: draw a bar chart of bus 25, car 15, walk 30 and bike 10.
How many more walk than car?
bus 25, car 15, walk 30, bike 10
1 Draw the axes
The names go along the bottom.
The numbers go up the side.
The biggest number is 30.
So the side counts in 5s, starting at 0.
Each line on the side is 5 more.
1 line = 5
2 Draw the bars
Bus: 25.
Its bar goes up to 25 on the side.
Car: 15.
Walk: 30.
All the bars have the same width, with gaps between them.
3 Read the chart
Careful!
The side counts in 5s.
So read the number on the side, not how many squares.
Careful: read the side, not the squares
Walk reaches 30.
Car reaches 15.
How many more: we take away.
30 minus 15.
= walk − car = 30 − 15
30 minus 15 is 15.
So there are 15 more walk than car.
= walk − car = 15
4 Check
Let's check: 15 plus 15 is 30.
So it is right!
15 + 15 = 30
Let's look back.
First: draw the axes.
Then: draw the bars.
Then: read the chart.
Last: check.
Answer
= walk − car = 15