Chart Reading Practice Test Worksheets
Build confidence with printable chart reading worksheets and focused graph interpretation practice tests. Students learn to read line graphs, compare values across intervals, identify increases and decreases, and calculate changes accurately from visual data.
For students who can read plotted values, but need practice comparing interval changes without rushing.
Etsy listing opens in a new tab. Checkout and downloads are handled on Etsy.com.
The Rules Every Chart Reading Question Uses
These questions are not asking for the highest or lowest plotted value. They ask what changed between two neighbouring points, then compare those interval differences.
Rule 1: Read the end value
The answer option names the end of the interval, such as 7 hours or Day 4.
Example: A change from 6 hours to 7 hours is reported as 7 hours.
Rule 2: Subtract previous from current
Work out each interval as current value minus previous value.
Example: 80 - 70 = +10, while 60 - 75 = -15.
Rule 3: Match the wording
Greatest increase, greatest decrease, and smallest positive increase are different questions.
Example: +2.5 is smaller than +7.5, but 0 is not a positive increase.
Rule 4: Ignore flat intervals for gains
A zero change is no increase and no decrease, so it cannot answer a positive-increase question.
Example: 35 - 35 = 0, so it is flat, not a gain.
3 Worked Chart Reading Examples
One greatest decrease and two smallest-positive-increase questions from the sample paper.
At the end of which hour did the smartphone's battery level decrease the most?
Options:
A) 6 hours
B) 3 hours
C) 7 hours
D) 1 hour
E) 5 hours
Worked Method
Step 1: Calculate the decreases: Start to 1 hour is 45 - 60 = -15%.
Step 2: Other decreases are 50 to 40 = -10%, 75 to 70 = -5%, and 70 to 60 = -10%.
Step 3: The greatest decrease is the largest drop: 15%, ending at 1 hour.
Answer: D, 1 hour.
At the end of which hour did the wind speed have the smallest positive increase?
Options:
A) 3 hours
B) 2 hours
C) 5 hours
D) 1 hour
E) 7 hours
Worked Method
Step 1: List the positive changes: Start to 1 hour is +2.5 km/h, 1 to 2 hours is +7.5 km/h, and 2 to 3 hours is +10 km/h.
Step 2: Continue checking increases: 4 to 5 hours is +7.5 km/h, 5 to 6 hours is +10 km/h, and 7 to 8 hours is +7.5 km/h.
Step 3: The smallest positive increase is +2.5 km/h, ending at 1 hour.
Answer: D, 1 hour.
At the end of which week did the baby's weight have the smallest positive gain?
Options:
A) 1 week
B) 2 weeks
C) 6 weeks
D) 5 weeks
E) 3 weeks
Worked Method
Step 1: Calculate the gains: Birth to week 1 = +0.3 kg, week 1 to week 2 = +0.2 kg, week 2 to week 3 = +0.1 kg.
Step 2: Weeks 4, 5, 6, and 7 have 0 kg change. They are not positive gains.
Step 3: The smallest positive gain is +0.1 kg, ending at week 3.
Answer: E, 3 weeks.
Before You Buy
Want to check the level and layout first? Download the free 3-question sample. It uses the same question style, printable format, and answer-key approach as the full pack.
Download Free Sample PDFGet the Full Practice Pack
The full Chart Reading pack contains 90 graph interpretation questions across 3 printable test sets. Students practise line graphs, interval differences, greatest increases, greatest decreases, and smallest positive changes.
Checkout and downloads are securely handled on Etsy.com