Key Points in Mathematics for JAMB 2026/2027 With 60 Questions and Answers

Key Points in Mathematics for JAMB 2026/2027:- If there is one subject that makes many JAMB candidates panic, it is Mathematics. Some fear the formulas, some avoid the calculations, but the wise ones understand a simple truth. JAMB Mathematics is not difficult. It only requires the right key points, consistent practice, and familiarity with repeated topics. Once you understand the areas JAMB tests every year, scoring above 70 becomes very possible.

This guide contains the most important JAMB Mathematics Key Points, clear explanations, and a complete set of 60 Mathematics Questions and Answers. If you study this guide well, your confidence in Mathematics will increase quickly.

Key Points in Mathematics for JAMB 2026/2027 Important

Key Points in Mathematics for JAMB 2026/2027 is important because:

• Mathematics is compulsory for all science, commercial, and engineering courses
• JAMB repeats many calculation patterns
• Most questions follow simple steps once you understand the formulas
• It influences your total JAMB score greatly
• It is easy to improve through regular solving of problems

If you want a high JAMB score, Mathematics must be one of your strongest subjects.

Key Points in Mathematics for JAMB 2026/2027 With 60 Questions and Answers

1. Number Bases and Fractions

• Convert between bases
• Understand binary numbers
• Know addition and subtraction of fractions
• Understand decimal places and significant figures
• Round up numbers correctly

2. Algebra

• Expand and simplify expressions
• Solve quadratic equations
• Factorization techniques
• Linear equations and inequalities
• Simultaneous equations
• Indices and logarithms

3. Geometry and Mensuration

• Areas of triangles, circles, trapeziums
• Perimeter and circumference
• Volume of solids: cube, cylinder, cone, sphere
• Angles in parallel lines
• Pythagoras theorem
• Trigonometric ratios: sine, cosine, tangent

4. Statistics

• Mean, median, mode
• Range and frequency tables
• Pie charts and bar charts
• Probability basics
• Cumulative frequency
• Quartiles and percentiles

5. Graphs and Functions

• Plotting linear graphs
• Gradient and intercept
• Distance-time graphs
• Quadratic graphs
• Simple transformations

6. Commercial Mathematics

• Simple and compound interest
• Profit and loss
• Discount and commission
• Ratio and proportion
• Percentage increase and decrease
• Exchange rates

Areas JAMB Repeats Every Year/JAMB Area Of Concentration 

• Quadratic equations
• Fractions and decimals
• Logarithms
• Simple and compound interest
• Ratio and proportion
• Statistics
• Geometry and mensuration.
• Trigonometry
• Graphs
• Simultaneous equations

60 JAMB MATHEMATICS PRACTICE QUESTIONS AND ANSWERS

Below are 60 practice questions divided into sections.

PART I: Number Bases and Fractions (10 Questions)

1. Convert 1010₂ to base 10.
   Answer: 10
2. Convert 15₁₀ to base 2.
   Answer: 1111₂
3. Simplify 3/4 + 1/6.
   Answer: 11/12
4. Simplify 5/8 − 1/4.
   Answer: 3/8
5. Find the decimal of 3/5.
   Answer: 0.6
6. Round 6.789 to 2 decimal places.
   Answer: 6.79
7. Simplify 2.4 × 10³.
   Answer: 2400
8. Convert 0.75 to a fraction.
   Answer: 3/4
9. Simplify 12/18.
   Answer: 2/3
10. Convert 0.125 to a fraction.
    Answer: 1/8

PART II: Algebra (10 Questions)

11. Solve x + 5 = 12.
    Answer: x = 7
12. Factorize x² − 9.
    Answer: (x − 3)(x + 3)
13. Solve 3x = 15.
    Answer: x = 5
14. Simplify 2(x + 3).
    Answer: 2x + 6
15. Solve x² = 49.
    Answer: x = 7 or x = −7
16. Factorize x² + 5x + 6.
    Answer: (x + 2)(x + 3)
17. Solve 4x − 8 = 0.
    Answer: x = 2
18. Solve 2x + 3 = 11.
    Answer: x = 4
19. Expand (x + 2)(x + 5).
    Answer: x² + 7x + 10
20. Simplify log₁₀100.
    Answer: 2

PART III: Geometry and Mensuration (10 Questions)

21. Find the area of a triangle with base 8 and height 5.
    Answer: 20 cm²
22. Area of a circle with radius 7.
    Answer: 154 cm²
23. Circumference of a circle with radius 7.
    Answer: 44 cm
24. Volume of a cube with side 3.
    Answer: 27 cm³
25. Pythagoras: if legs are 6 and 8, find hypotenuse.
    Answer: 10
26. tan θ = opposite/adjacent. If opposite = 4, adjacent = 3.
    Answer: 4/3
27. Volume of cylinder with radius 3 and height 5.
    Answer: 45π
28. Find sin 30°.
    Answer: 1/2
29. Find cos 60°.
    Answer: 1/2
30. Find tan 45°.
    Answer: 1

PART IV: Statistics (10 Questions)

31. The mode of 2, 3, 3, 4, 5.
    Answer: 3
32. The median of 5, 7, 9.
    Answer: 7
33. Find the mean of 2, 4, 6, 8.
    Answer: 5
34. Probability of getting a head from a coin.
    Answer: 1/2
35. Range of 3, 10, 12, 6.
    Answer: 9
36. Highest bar in a bar chart represents what?
    Answer: Highest frequency
37. Median of 1, 2, 3, 4, 5, 6.
    Answer: 3.5
38. Sum of probabilities of events.
    Answer: 1
39. Most frequent number is called what?
    Answer: Mode
40. Average is also called what?
    Answer: Mean

PART V: Commercial Mathematics (10 Questions)

41. Simple interest formula.
    Answer: SI = PRT/100
42. Find SI on 5000 at 10 percent for 1 year.
    Answer: 500
43. Profit = SP − CP. If SP is 2000 and CP is 1500.
    Answer: 500
44. Loss = CP − SP. If CP is 3000 and SP is 2400.
    Answer: 600
45. Find 20 percent of 500.
    Answer: 100
46. Find the percentage increase from 50 to 75.
    Answer: 50 percent
47. If N500 is exchanged at N1000 per dollar, how many dollars?
    Answer: 0.5 dollar
48. Compound interest is always greater than what?
    Answer: Simple interest
49. Ratio of 2:4 simplified.
    Answer: 1:2
50. Discount on 1000 at 10 percent.
    Answer: 100

PART VI: Mixed Mathematics Questions (10 Questions)

51. Solve √49.
    Answer: 7
52. Find the LCM of 4 and 6.
    Answer: 12
53. HCF of 8 and 12.
    Answer: 4
54. Evaluate 2³.
    Answer: 8
55. If y = 2x, find y when x = 5.
    Answer: 10
56. Solve 3x − 9 = 0.
    Answer: x = 3
57. 1 hour contains how many minutes?
    Answer: 60
58. A polygon with 8 sides is called what?
    Answer: Octagon
59. Perimeter of a square with side 4.
    Answer: 16 cm
60. 25 percent written as a fraction.
    Answer: 1/4

FREQUENTLY ASKED QUESTIONS (FAQS)

How many questions are in JAMB Mathematics?

JAMB Mathematics contains 40 questions covering algebra, geometry, statistics, graphs, and commercial mathematics.

Does JAMB repeat Mathematics questions?

Yes. JAMB repeats question patterns in fractions, equations, interest, graphs, and trigonometry.

Is Mathematics difficult in JAMB?

Mathematics becomes simple when you understand formulas and practise regularly.

How can I score high in JAMB Mathematics?

Study key formulas, solve past questions, and practise calculations daily.

What topics are most important in JAMB Mathematics?

Quadratic equations, geometry, statistics, trigonometry, simple and compound interest, ratio, and algebra.

Also Read: Key Points in Chemistry for JAMB 2026/2027 With 60 Questions and Answers

Conclusion

JAMB Mathematics becomes easy when you understand the key points and practise regularly. The topics in this guide highlight the exact areas JAMB repeats almost every year. The 60 questions and answers will help you prepare better and understand the patterns of JAMB questions. If you solve problems daily and revise these key points often, scoring above 70 becomes very realistic.

Consistency is the secret. Practise step by step and remain focused.