Free Demo ClassIn my 20+ years of teaching Mathematics and evaluating CBSE Class XII answer sheets, I have seen hundreds of students appear for their board exams. Most students who lose marks did not lose them because they lacked knowledge — they lost them to small, avoidable habits under exam pressure.
As a CBSE Maths tutor in Noida working with Class 10 and 12 students every year, I have noticed the same mistakes repeat, exam after exam. So here are the ones I see most often, along with simple fixes — useful whether your child studies with a tutor, at home, or with us here at EasyMath.
1. Not Reading the Question Fully
Even my brightest students do this. In a hurry to start solving, they read half the question and jump straight to writing the answer — then realise midway that it asked for something slightly different.
Remedy: Read the full question twice before picking up your pen. Underline key words like “hence,” “prove,” or “find the value of x only” — these small words decide how CBSE wants the answer, and skipping them costs marks even when your maths is correct.
2. Skipping Steps to “Save Time”
CBSE gives marks for the method, not just the final answer — this is called step marking, and it is generous when the work is shown properly.
Remedy: Write every step, even the small ones. Get the final answer wrong but the method right, and you still keep most of the marks. Skip the steps, and there’s nothing for the evaluator to reward.
3. Poor Presentation and Untidy Handwriting
Having personally evaluated CBSE Class XII papers, I can say honestly — a neat, organised answer sheet genuinely helps. It’s not favouritism; when your work is clear, the evaluator can follow your logic and award marks for each correct step. When it’s messy, genuine marks sometimes get missed simply because they were hard to locate.
Remedy: Leave a small margin, number your answers clearly, and keep rough work out of your final answer. Cut mistakes with a single clean line rather than scribbling over them.
4. Weak Grip on NCERT Basics
Many students jump straight to sample papers and previous year questions without first mastering NCERT textbook exercises. But CBSE papers are built closely on NCERT concepts, and a shaky foundation shows up exactly when the pressure is highest.
Remedy: Treat your NCERT textbook as your first and most important resource. Solve every example and exercise at least once before moving to sample papers — once NCERT is strong, everything else gets easier.
5. Ignoring Time Management During Practice
Students often practise at home without a timer, taking as long as they like — then in the real exam, they run out of time on the last few questions, the ones they may have solved perfectly with enough time.
Remedy: When practising a full sample paper at home, time yourself exactly as you would in the real exam. This trains your mind and hand to work at exam speed, so the clock doesn’t cause panic on the day.
6. Not Attempting Difficult Questions At All
Leaving a tough-looking question blank guarantees zero marks — even if you knew part of the method.
Remedy: Attempt every question, even partially. Write whatever formula or first step you know. Partial marks always beat no marks, and the question is often easier than it first looks.
7. Panic and Negative Self-Talk During the Exam
One tough question early in the paper, and a student starts thinking “I am going to fail” — this thought then disturbs their focus for the rest of the exam, even on questions they know well.
Remedy: If a question feels tough, don’t stop and panic — mark it, move on, and return later with a fresh mind. An answer that seemed impossible ten minutes ago often becomes clear on a second look.
A Note From Me to Parents and Students
Board exams feel big and stressful, especially in Class 10 — but most of these mistakes are simply habits, and habits change with a little awareness and practice. None of this requires studying more. It just means studying a little smarter.
If your child is preparing for the CBSE Class 10 board exam and could use personal guidance on exactly these habits, I’d love to help. At EasyMath, we run 1-on-1 and small group Maths classes for Class 8-12 students across our Sector 168 and Sector 150 (ATS Le Grandiose) centres in Noida — and I offer a free demo class so you can see how I teach before committing.
📞 Call or WhatsApp +91 9560313130, or write to info@easymath.in, to book your child’s free demo class this week.
Wishing every Class 10 student a confident and successful board exam season.
– Kavita Rana
M.Sc. (Mathematics), B.Ed., Ex-DAV PGT, CBSE Class XII Paper Evaluator
