Chapter Exam

Chapter-6 Number Play — Online MCQ Test

Q: What is the definition of an even number?

Answer: A. A number divisible by 2 — An even number is any integer that can be divided by 2 without a remainder.

Q: Which of the following is an odd number?

Answer: B. 35 — 35 is odd because it leaves a remainder of 1 when divided by 2, unlike 24, 42, and 50 which are all even.

Q: What is the sum of an even number and an odd number?

Answer: B. Always odd — The sum of an even number and an odd number is always odd (e.g., 2 + 3 = 5; 4 + 5 = 9).

Q: In the cryptarithm puzzle, if AB + BA = CDC, where A, B, C, D are different digits, which statement must be true?

Answer: C. C must be 1 — When two 2-digit numbers add to a 3-digit number, the result must be between 100-198, so C must be 1.

Q: In a complex cryptarithm where HE + LOVES = MATH, what is the maximum possible value for the digit represented by M?

Answer: D. 1 — Since HE (max 98) + LOVES (max 98765) cannot exceed 99863, M can only be 1 because the sum of a 2-digit and 5-digit number starting with different letters in a cryptarithm context creates a result where M=1.

MATHS (KANITHA PRAKASH) · CLASS 7th · Karnataka State Board

Practice Chapter-6 Number Play with a free chapter-wise online MCQ test for Karnataka State Board CLASS 7th MATHS (KANITHA PRAKASH). This chapter covers: parity - Fibonacci sequence - cryptarithms - number patterns. AI-generated questions from basic to board-exam level, with instant results and explanations.

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Chapter-6 Number Play — Important Questions & Answers (FAQ)

Frequently asked questions from Karnataka State Board CLASS 7th MATHS (KANITHA PRAKASH) — Chapter-6 Number Play, with answers and explanations. These are sample questions; the exam has its own separate question set.

What is the definition of an even number?

A. A number divisible by 2 ✓
B. A number divisible by 3
C. A number greater than 10
D. A number with two digits

Answer: A. A number divisible by 2
An even number is any integer that can be divided by 2 without a remainder.

Which of the following is an odd number?

A. 24
B. 35 ✓
C. 42
D. 50

Answer: B. 35
35 is odd because it leaves a remainder of 1 when divided by 2, unlike 24, 42, and 50 which are all even.

What is the sum of an even number and an odd number?

A. Always even
B. Always odd ✓
C. Sometimes even, sometimes odd
D. Always zero

Answer: B. Always odd
The sum of an even number and an odd number is always odd (e.g., 2 + 3 = 5; 4 + 5 = 9).

In the cryptarithm puzzle, if AB + BA = CDC, where A, B, C, D are different digits, which statement must be true?

A. A + B must be less than 10
B. A + B must be greater than 10
C. C must be 1 ✓
D. D must be 0

Answer: C. C must be 1
When two 2-digit numbers add to a 3-digit number, the result must be between 100-198, so C must be 1.

In a complex cryptarithm where HE + LOVES = MATH, what is the maximum possible value for the digit represented by M?

A. 9
B. 8
C. 2
D. 1 ✓

Answer: D. 1
Since HE (max 98) + LOVES (max 98765) cannot exceed 99863, M can only be 1 because the sum of a 2-digit and 5-digit number starting with different letters in a cryptarithm context creates a result where M=1.