JAMB and WAEC Mathematics questions

861 questions with answers and explanations. Tap an option to check yourself.

All JAMB WAEC

Question 1· Binary operations· JAMB
A binary operation * is defined on real numbers by a * b = a + b − ab. Evaluate 3 * 4.
Explanation and discussion
Question 2· Binary operations· JAMB
The operation ⊕ is defined by a ⊕ b = a² + b². Find 2 ⊕ (1 ⊕ 1).
Explanation and discussion
Question 3· Binary operations· WAEC
If x Δ y = x² − 2y, evaluate (3 Δ 1) Δ 2.
Explanation and discussion
Question 4· Binary operations· JAMB
The operation ⊗ gives the remainder when a + b is divided by 4. Find 3 ⊗ 3.
Explanation and discussion
Question 5· Binary operations· JAMB
If m ∘ n = m² − n², evaluate (3 ∘ 2) ∘ 4.
Explanation and discussion
Question 6· Binary operations· JAMB
Find the identity element of the operation a ⊕ b = a + b + ab on the real numbers.
Explanation and discussion
Question 7· Binary operations· JAMB
The operation * is defined by a * b = 3a − b. Find 4 * 5.
Explanation and discussion
Question 8· Binary operations· WAEC
An operation △ is defined by p △ q = p² + q². Evaluate (1 △ 2) △ 1.
Explanation and discussion
Question 9· Binary operations· JAMB
Which of the following operations on real numbers is associative?
Explanation and discussion
Question 10· Binary operations· WAEC
If a ⊕ b = 2a + b², evaluate 3 ⊕ 2.
Explanation and discussion
Question 11· Binary operations· JAMB
The operation * on real numbers is defined by a * b = ab + 1. Is the operation commutative?
Explanation and discussion
Question 12· Binary operations· JAMB
The operation ∆ is defined on real numbers by a ∆ b = a + b − 3. Find the identity element.
Explanation and discussion
Question 13· Binary operations· JAMB
Which of the following operations on real numbers is commutative?
Explanation and discussion
Question 14· Binary operations· JAMB
Which of the following sets is closed under subtraction?
Explanation and discussion
Question 15· Binary operations· JAMB
The operation * is defined by a * b = a + 2b. Find 5 * 3.
Explanation and discussion
Question 16· Binary operations· JAMB
The operation ∘ is defined by a ∘ b = a² − b. Find (2 ∘ 3) ∘ 1.
Explanation and discussion
Question 17· Binary operations· WAEC
The operation x ∗ y = (x + y)/2 is defined on the real numbers. Which statement is true?
Explanation and discussion
Question 18· Binary operations· WAEC
If x ∗ y = x raised to the power y, find 2 ∗ 3.
Explanation and discussion
Question 19· Binary operations· WAEC
A binary operation * is defined on the real numbers by a * b = a + b − ab. Find 3 * 4.
Explanation and discussion
Question 20· Binary operations· WAEC
Find the identity element of the operation a ∘ b = a + b − 2 on the real numbers.
Explanation and discussion

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JAMB and WAEC Mathematics questions

A binary operation * is defined on real numbers by a * b = a + b − ab. Evaluate 3 * 4.

The operation ⊕ is defined by a ⊕ b = a² + b². Find 2 ⊕ (1 ⊕ 1).

If x Δ y = x² − 2y, evaluate (3 Δ 1) Δ 2.

The operation ⊗ gives the remainder when a + b is divided by 4. Find 3 ⊗ 3.

If m ∘ n = m² − n², evaluate (3 ∘ 2) ∘ 4.

Find the identity element of the operation a ⊕ b = a + b + ab on the real numbers.

The operation * is defined by a * b = 3a − b. Find 4 * 5.

An operation △ is defined by p △ q = p² + q². Evaluate (1 △ 2) △ 1.

Which of the following operations on real numbers is associative?

If a ⊕ b = 2a + b², evaluate 3 ⊕ 2.

The operation * on real numbers is defined by a * b = ab + 1. Is the operation commutative?

The operation ∆ is defined on real numbers by a ∆ b = a + b − 3. Find the identity element.

Which of the following operations on real numbers is commutative?

Which of the following sets is closed under subtraction?

The operation * is defined by a * b = a + 2b. Find 5 * 3.

The operation ∘ is defined by a ∘ b = a² − b. Find (2 ∘ 3) ∘ 1.

The operation x ∗ y = (x + y)/2 is defined on the real numbers. Which statement is true?

If x ∗ y = x raised to the power y, find 2 ∗ 3.

A binary operation * is defined on the real numbers by a * b = a + b − ab. Find 3 * 4.

Find the identity element of the operation a ∘ b = a + b − 2 on the real numbers.