Charts
A bar chart compares amounts: the tallest bar is the largest. The total is the sum of all; the mean, the total divided by the number of bars. Always check the axis scale before comparing.
Where this sits
This is where the ladder starts: nothing is needed before it.
Exercises from this rung
Generated by the app, from easiest to hardest
Which bar is the tallest?
- Blue
- Gold
- Red
- Grey
Why Gold has 11, more than Red (7), Blue (8), Green (8), Grey (7).
easierWhat do all the bars add up to?
- 27
- 28
- 26
- 32
Why Read each bar's height and add them: 2 + 3 + 9 + 5 + 8 = 27.
in betweenHow much more does We have than Mo?
- 7
- 11
- 8
- 6
Why The We bar reaches 9 and the Mo bar 2: 9 − 2 = 7.
harder