PTE DI Strategy: Mastering Tables and Double Charts—Focus on Units and Main Points, Don't Read Line-by-Line (2026)

Many test-takers struggle with PTE Describe Image (DI)—they manage okay with bar charts and line graphs, but suddenly freeze when faced with tables and double charts.

It’s not that they don’t understand the content.
It’s that every cell looks like a number to read, and every digit feels like one that can't be missed.
Then, once the 40 seconds are up, the mouth starts listing data like a menu.

I recently checked Pearson’s current official exam page for DI. Their prompt is very straightforward: look at main information first, then add supporting details. Simply put, explain what the image is about first, then pick a few details to support that. This approach works perfectly for tables and double charts.

Recognizing Units First Makes the Visual Less Chaotic

The most annoying part of table questions isn't usually the number of numbers, but the chaos of units.
Someone might be looking at the number of people, while another is looking at a percentage, or sometimes one axis is years and the other is regions. If you don't identify this early on, the comparison logic in your explanation can easily drift away.

So, I now recommend spending a couple of seconds checking three things first: What is the horizontal axis? What is the vertical axis? What are the units? Once this foundation is set, even if you miss a number or two later, the description will still flow like you're describing the chart, not reciting lottery numbers.

You Need a Main Theme Before You Can Polish the Details

Pearson’s official "main idea" line feels like a reminder to not be greedy.
The biggest mistake with tables and double charts is diving into details the moment you start speaking, resulting in a presentation where the listener still doesn't know what you are comparing after three sentences.

A steadier approach is to establish the main theme first.

For example, if the graph is about consumption comparison, state first which category is highest and which is lowest.
If the chart is double, state first whether the two graphs are showing two dimensions of the same thing or two different time points.
Build the skeleton first so the numbers have somewhere to hang.

Explaining the Relationship Between the Two Charts is Worth More Than Reading All the Numbers

Many people adopt a strange habit with double charts: say a bit about the first, a bit about the second, and jump around confusedly. They lose track of what they just said halfway through.

I prefer a straightforward sequence: discuss the common theme first, then the most obvious differences, and finally add a minor detail. Three steps are enough.

Because double charts aren't asking you to be a commentator reading every corner of two charts. The machine wants to hear if you captured the correlation and if the sentences hold up.

Approximations Sound More Like a Native Speaker Than Precise Number Reading

Many hesitate to approximate numbers, thinking things like 39.7 must be spoken as thirty-nine point seven, otherwise, they feel they aren't being serious. But usually, there is no need.

If the numbers in the chart are fragmented, you can completely say things like about forty percent, just over half, or roughly twice as much. Especially in table questions, if there are too many numbers, obsessing over decimal points can easily ruin the breathing rhythm of the entire paragraph.

You aren’t a financial news anchor.
You are taking the PTE exam.
Being able to describe the image clearly is much more important than filling your time with numbers.

Highs and Changes Are Easier to Turn into Sentences Than Scattered Numbers

I see many students stuck on DI not because they can't read the chart, but because they struggle to turn it into sentences. Their eyes are full of numbers, but the logic is missing from their speech.

So, stop staring at individual cells and grab these things first:

Which is the highest, which is the lowest?
Which group has the biggest gap?
Which stage shows the most obvious rise or fall?
Do the two charts reflect on each other?

When you grasp these relationships, sentences will come naturally. Phrases like "A remained the highest category" or "B was much lower than C" flow much smoother than stringing together a series of hard numbers.

Simpler Speaking Actions Reduce the Risk of Failure

Some test-takers find the hardest part of DI prep isn't the chart difficulty, but having too many actions. Searching for templates, memorizing transition words, debating sentence structure, and trying to include every number all clog up the brain, leading to breakdowns.

I suggest keeping the process very simple:

Look at the title and units.
Grab the main theme.
Add two comparisons.
Close with a normal sentence.

That’s it. Really, that’s enough.

For tables and double charts, the more you try to conquer everything at once, the more likely you are to crash and burn.

Many people practice DI only checking if they hit the 40-second mark, not listening to how they actually sound. That’s a loss. Because the most common problem with tables and double charts usually isn't the chart itself, but the output.

If you listen to 2 or 3 of your recordings, you might notice that even though you understood the chart, you kept repeating "the table shows" or "the chart shows", or spoke of numbers without explaining the relationships. This habit is hard to catch without actually listening back.

If you want to stabilize your DI along with RA and RS, I recommend using a main platform for continuous practice. Youshow PTE is very user-friendly; you can download it from the Apple App Store or use the official website directly at https://pte.youshowedu.com/en. It has a full range of question types, audio recording, AI scoring, and mock tests, so you won't be practicing randomly from day to day.

Essentially, Table and Double Chart Questions Test Your Ability to Prioritize

Ultimately, these charts look complex, but they aren't that mystical.
The official reminder isn't to "read all the numbers," but to "grab main information first, then use details to support it."

So, next time you encounter a table or double chart, don't rush to read line-by-line. Ask yourself three simple questions: What are the units? What is the most obvious comparison? Which main theme will I start with?

Once you grab these three things, DI usually won't be too difficult.
At the very least, your head won't be a bowl of confusion when you start speaking. That is sufficient.