Number System — JAMB Mathematics Past Questions
Number System is one topic inside the JAMB Mathematics syllabus, and drilling it on its own is usually faster than revising the whole subject again. Below: which JAMB years have examined it, then real Number System questions with worked answers.
When JAMB examined Number System
Number System questions appear in our bank for the JAMB years below. This is taken from the questions themselves, not from a syllabus outline — so if a year is listed, this topic was genuinely examined that year.
A topic that keeps reappearing is a topic JAMB keeps testing. Newer years matter most, because question style drifts.
Try Number System questions
Real Mathematics questions tagged to Number System. The first is worked through completely so you can see how our explanations read — the rest you can attempt now and check inside the app.
Express (1110)₂ in base two.
- A 1100₁₀
- B 1101₁₀
- C 1111₁₀
- D 1110₁₀
Answer: D
The binary number (1110)₂ is already in base two. The question likely asks for its decimal equivalent: 1×8 + 1×4 + 1×2 + 0×1 = 14.
The base in which the operation was performed was
- A 6
- B 2
- C 4
- D 5
Answer and full explanation are inside the app.
Check the answerFind the smallest number by which 252 can be multiplied to obtain a perfect square.
- A 2
- B 3
- C 5
- D 7
Answer and full explanation are inside the app.
Check the answerOther Mathematics topics
Drill Number System until it stops costing you marks
Filter Mathematics practice to Number System alone, work through it with worked explanations, and let the analytics show you when it has actually stuck. Free to start.
Number System in JAMB Mathematics: common questions
Are Number System questions free?
Yes. Create a free account and every Mathematics question tagged to Number System is available with a worked explanation. Past questions are not paywalled.
Is Number System really examined?
Yes. Number System appears in our bank across 8 JAMB years, taken from the questions themselves rather than a syllabus outline.
Can I practise Number System on its own?
Yes. JambUp lets you filter Mathematics questions to a single topic, so you can drill Number System until it stops costing you marks, then move on to the next weak area.