JAMB Mathematics questions

497 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· JAMB
The operation ⊗ gives the remainder when a + b is divided by 4. Find 3 ⊗ 3.
Explanation and discussion
Question 4· Binary operations· JAMB
If m ∘ n = m² − n², evaluate (3 ∘ 2) ∘ 4.
Explanation and discussion
Question 5· Binary operations· JAMB
Find the identity element of the operation a ⊕ b = a + b + ab on the real numbers.
Explanation and discussion
Question 6· Binary operations· JAMB
The operation * is defined by a * b = 3a − b. Find 4 * 5.
Explanation and discussion
Question 7· Binary operations· JAMB
Which of the following operations on real numbers is associative?
Explanation and discussion
Question 8· Binary operations· JAMB
The operation * on real numbers is defined by a * b = ab + 1. Is the operation commutative?
Explanation and discussion
Question 9· Binary operations· JAMB
The operation ∆ is defined on real numbers by a ∆ b = a + b − 3. Find the identity element.
Explanation and discussion
Question 10· Binary operations· JAMB
Which of the following operations on real numbers is commutative?
Explanation and discussion
Question 11· Binary operations· JAMB
Which of the following sets is closed under subtraction?
Explanation and discussion
Question 12· Binary operations· JAMB
The operation * is defined by a * b = a + 2b. Find 5 * 3.
Explanation and discussion
Question 13· Binary operations· JAMB
The operation ∘ is defined by a ∘ b = a² − b. Find (2 ∘ 3) ∘ 1.
Explanation and discussion
Question 14· Binary operations· JAMB
The operation ∗ is defined on non-zero real numbers by a ∗ b = (a + b)/ab. Find 2 ∗ 3.
Explanation and discussion
Question 15· Binary operations· JAMB
The operation * is defined by a * b = ab − a − b + 2. Find x if x * 3 = 6.
Explanation and discussion
Question 16· Binary operations· JAMB
Which of these operations on the real numbers is commutative?
Explanation and discussion
Question 17· Binary operations· JAMB
The operation * on real numbers is defined by a * b = a + b − ab, with identity element 0. Find the inverse of 2.
Explanation and discussion
Question 18· Binary operations· JAMB
The operation # is defined by a # b = ab/(a + b). Find 3 # 6.
Explanation and discussion
Question 19· Binary operations· JAMB
The operation * is defined by a * b = (a + b)/2. Find (2 * 4) * 6.
Explanation and discussion
Question 20· Binary operations· JAMB
The operation * on real numbers is defined by a * b = a + b + 2. Find the identity element.
Explanation and discussion

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JAMB 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).

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.

Which of the following operations on real numbers is associative?

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 ∗ is defined on non-zero real numbers by a ∗ b = (a + b)/ab. Find 2 ∗ 3.

The operation * is defined by a * b = ab − a − b + 2. Find x if x * 3 = 6.

Which of these operations on the real numbers is commutative?

The operation * on real numbers is defined by a * b = a + b − ab, with identity element 0. Find the inverse of 2.

The operation # is defined by a # b = ab/(a + b). Find 3 # 6.

The operation * is defined by a * b = (a + b)/2. Find (2 * 4) * 6.

The operation * on real numbers is defined by a * b = a + b + 2. Find the identity element.