How to Solve: Tables and Charts

How to Solve: Tables and Charts

(For Students Who Want to Ace Their Exam & Teachers Who Need a Ready-to-Record Script)

Introduction

"Imagine you’re given a table of test scores, a bus timetable, or a nutrition label—can you read it fast, spot the pattern, and answer the question in under a minute? That’s exactly what examiners test, and mastering this skill gets you full marks on data questions in math, science, and even real-life decisions!

What You Need To Know First

Before diving into tables and charts, make sure you understand: 1. Basic arithmetic operations (addition, subtraction, multiplication, division). 2. How to read a simple table (rows = horizontal, columns = vertical). 3. Units and labels (e.g., "km/h" means kilometers per hour).

Key Vocabulary

Formulas To Know

Step-by-Step Method

How to Solve Any Table/Chart Question in 5 Steps

1. Read the question first – Underline what it’s asking (e.g., "total," "average," "difference").
2. Scan the table – Find the row/column that matches the question.
3. Highlight key data – Circle the numbers you need.
4. Apply the formula – Write the calculation clearly.
5. Check units and labels – Did you answer in the correct format (e.g., "$," "km/h")?

Worked Example Using the Steps

Question: The table shows the number of books read by 4 students in a month. How many more books did Emma read than Liam?

Step 1: The question asks for the difference between Emma and Liam. Step 2: Find the "Books Read" column. Step 3: Highlight Emma (8) and Liam (3). Step 4: Difference = 8 − 3 = 5 Step 5: The answer is 5 books (correct unit).

Worked Examples

Example 1 – Basic (Total)

Question: A fruit stall sells apples, bananas, and oranges. How many fruits were sold in total on Monday?

Solution: 1. Find the "Monday" column. 2. Add all fruits: 12 + 15 + 7 = 34 Answer: 34 fruits

What we did and why: We added all values in the "Monday" column because the question asked for the total sold that day.

Example 2 – Medium (Average)

Question: What is the average number of goals scored by Team B in the first 3 matches?

Solution: 1. Find Team B’s goals: 3, 4, 2 2. Total = 3 + 4 + 2 = 9 3. Average = 9 ÷ 3 = 3 Answer: 3 goals

What we did and why: We only used the first 3 matches (not Match 4) and divided by 3 because the question specified the first 3 matches.

Example 3 – Exam Style (Hidden Trick)

Question: The table shows the number of students in each grade. What percentage of the total students are in Grade 5?

Solution: 1. Total students = 25 + 30 + 20 + 25 = 100 2. Grade 5 students = 20 3. Percentage = (20 ÷ 100) × 100 = 20% Answer: 20%

What we did and why: We calculated the total first (100 students) before finding the percentage, even though the question didn’t explicitly ask for it.

Common Mistakes

Exam Traps

1-Minute Recap

"Okay, let’s lock this in—tables and charts are all about speed and accuracy. Here’s the game plan: 1. Read the question first—what’s it asking? Total? Average? Difference? 2. Find the right row/column—circle the numbers you need. 3. Do the math—add for totals, divide for averages, subtract for differences. 4. Check units—did you answer in dollars, hours, or just a number? 5. Double-check—did you use the right numbers? Did you add instead of subtract?

Examiners love to trick you with extra data or hidden totals, so stay sharp. Practice with real tables—bus timetables, sports stats, anything! The more you see, the faster you’ll get. Now go ace that exam!

Teacher’s Recording Notes:

• Pacing: Speak slowly for steps, faster for recaps.
• Visuals: Highlight rows/columns on-screen as you explain.
• Engagement: Ask, "What’s the first thing you’d do with this table?" (Pause for student to think.)
• End with: "Drop a comment—what’s the trickiest table question you’ve seen?"

This guide ensures full marks by covering every angle—now go practice! ?