Reading and analysing charts
Bars, lines, pie slices, histograms, pictograms, two-way tables and charts that mislead
The Reading and analysing charts unit belongs to the Statistics and probability section of Math Mental and has 22 lessons: bars, lines, pie slices, histograms, pictograms, two-way tables and charts that mislead.
Lessons in this unit
- Reading one bar
- Gap between bars
- Total of the bars
- Mean from the chart
- From table to chart
- Reading a pictogram
- Total of the pictogram
- Reading a point
- Change between points
- Percentage change
- Trend of the line
- Adding two slices
- A slice in percent
- From slice to total
- Reading a band
- Total of the histogram
- Crossing row and column
- Margin totals
- Truncated axis
- Area out of proportion
- Chart practice
- Trophy: reading charts
How to work through this unit
Follow the lesson order
The unit has 22 lessons of increasing difficulty. Finish one before moving on: the early techniques come back in the later questions.
Solve it before reading the solution
Work every question out on your own, then read the step by step and check the reason for each step instead of only comparing the final answer.
Lock it in during review
The question types you miss come back in practice and review until you get them right in a row. The unit test confirms the whole unit stuck.
Frequently asked questions about this unit
What does the Reading and analysing charts unit cover?
Reading and analysing charts belongs to the Statistics and probability section and has 22 lessons: bars, lines, pie slices, histograms, pictograms, two-way tables and charts that mislead. The lessons start with the basic cases and build up to applications, always with a step-by-step solution.
What should I know before studying Reading and analysing charts?
This page names the previous unit on the path. If it is not solid yet, go back and practice first; if there is no prerequisite, this is where the path begins.
How long does Reading and analysing charts take?
Each lesson takes a few minutes. Most students do one or two a day and finish a unit in one or two weeks. The goal is answering correctly day after day, not clearing everything at once.
Are the Reading and analysing charts exercises free?
Yes. Every Math Mental lesson is free and ad-free; you only need an account to save your progress.
Your first lesson takes five minutes
Create an account, pick where to start and keep your streak from today.