India
CBSE Maths Calculator
Free online calculators for CBSE Class 10 and 12 Mathematics. Practice algebra, calculus, trigonometry, statistics and probability questions with step-by-step solutions.
Ages 15-18 · February to March (CBSE Board Exams 2026)
Calculator Not Permitted
Calculators are NOT permitted in any CBSE board examination. All calculations must be performed manually.
- CBSE strictly prohibits calculators in all board exams (Class 10 and 12)
- Students must show all working and calculations by hand
- Log tables are provided if needed for Class 12 exams
- Phone calculators and electronic devices are NOT allowed
- Use our calculators for practice and to verify your manual calculations
Calculators for CBSE Maths
Calculators are not allowed in CBSE board exams, but these tools are perfect for checking your manual calculations during practice and revision.
Quadratic Formula Calculator
Solve quadratic equations using the quadratic formula. Find roots, discriminant, and vertex. Free online quadratic formula calculator.
Derivative Calculator
Calculate derivatives of any function step by step. Supports higher-order derivatives, partial derivatives, and common functions. Free online tool.
Integral Calculator
Calculate indefinite integrals (antiderivatives) of functions. Symbolic integration with step-by-step display. Free online integral calculator.
Definite Integral Calculator
Calculate definite integrals with upper and lower bounds. Numerical integration using Simpson's rule. Free online definite integral calculator.
Probability Calculator
Calculate probability of events, complements, unions, and intersections. Free online probability calculator for statistics.
Standard Deviation Calculator
Calculate standard deviation, variance, mean, and more for any dataset. Supports population and sample statistics. Free online tool.
Solve For X Calculator
Solve algebraic equations for x. Handles linear, quadratic, polynomial, and simple equations. Free online equation solver.
Factor Calculator
Find all factors, prime factorisation, factor pairs, GCD, and LCM. Free online factor calculator with instant results.
Triangle Calculator
Calculate triangle sides, angles, area, and perimeter. Supports SSS, SAS, ASA, AAS configurations. Free online triangle calculator.
Log Calculator
Calculate logarithms with any base. Find natural log (ln), log base 10, and custom base logarithms. Free online log calculator.
Worked Examples
Practice with these CBSE-style questions. Work through each problem by hand first, then check your answer using the calculator.
1Quadratic Equations (Class 10)
standard
Quadratic Equations (Class 10)
standardProblem:
Find the roots of 2x² − 5x + 3 = 0 using the quadratic formula.
Solution:
x = (5 ± √(25 − 24)) / 4 = (5 ± 1) / 4. So x = 6/4 = 3/2 or x = 4/4 = 1.
Answer: x = 3/2 or x = 1
2Trigonometric Identities (Class 10)
standard
Trigonometric Identities (Class 10)
standardProblem:
If sin A = 3/5, find cos A and tan A where A is acute.
Solution:
Using sin²A + cos²A = 1: cos²A = 1 − 9/25 = 16/25, so cos A = 4/5. tan A = sin A / cos A = (3/5) / (4/5) = 3/4.
Answer: cos A = 4/5, tan A = 3/4
3Differentiation (Class 12)
higher
Differentiation (Class 12)
higherProblem:
Find dy/dx if y = e²ˣ sin(3x).
Solution:
Using the product rule: dy/dx = e²ˣ × 3cos(3x) + sin(3x) × 2e²ˣ = e²ˣ(3cos(3x) + 2sin(3x)).
Answer: dy/dx = e²ˣ(3cos(3x) + 2sin(3x))
4Definite Integration (Class 12)
higher
Definite Integration (Class 12)
higherProblem:
Evaluate the integral of x² from 1 to 3.
Solution:
Antiderivative of x² is x³/3. Evaluate: [3³/3] − [1³/3] = 27/3 − 1/3 = 26/3.
Answer: 26/3 ≈ 8.67
5Probability (Class 12)
standard
Probability (Class 12)
standardProblem:
A bag contains 5 red and 3 blue balls. Two balls are drawn without replacement. Find the probability that both are red.
Solution:
P(both red) = (5/8) × (4/7) = 20/56 = 5/14.
Answer: 5/14 ≈ 0.357
Frequently Asked Questions
Common questions about CBSE Mathematics exams and calculator use.
Can I use a calculator in CBSE board exams?
No. CBSE strictly prohibits calculators in all board examinations for both Class 10 and Class 12. All calculations must be done manually.
How can these online calculators help me prepare?
Use these calculators to check your manual calculations during practice. Work through problems by hand first, then verify your answers using the calculators. This builds accuracy and confidence for the exam.
When are the CBSE Maths board exams?
CBSE board exams are typically held in February and March. The exact dates are announced by CBSE a few months before the examination period.
What topics are covered in CBSE Class 12 Maths?
CBSE Class 12 Mathematics covers relations and functions, inverse trigonometric functions, matrices and determinants, continuity and differentiability, integrals, differential equations, vectors, three-dimensional geometry, linear programming, and probability.
What is the marking scheme for CBSE Maths?
The CBSE Class 12 Maths paper is for 80 marks (with 20 marks for internal assessment). It includes multiple-choice questions, short-answer questions, and long-answer questions with detailed working required.
Are log tables provided in CBSE exams?
Yes. CBSE provides mathematical log tables with the question paper for Class 12 exams when needed. Students do not need to memorise log values.