Chapter-11 Integers — Online MCQ Test
MATHS · Samacheer Kalvi 8th · Tamil Nadu State Board
Practice Chapter-11 Integers with a free chapter-wise online MCQ test.
This chapter covers: integers operations Covers operations on integers and their applications.
AI-generated questions from basic to board-exam level, with instant results and explanations.
Chapter-11 Integers — Important Questions & Answers
What is the value of -7 + 12?
- A. -19
- B. -5
- C. 5
- D. 19
Answer: C. 5
When adding integers with different signs, subtract the smaller absolute value from the larger one and keep the sign of the larger absolute value. Here, 12 - 7 = 5.
When adding integers with different signs, subtract the smaller absolute value from the larger one and keep the sign of the larger absolute value. Here, 12 - 7 = 5.
What is the result of (-4) × 3?
- A. 12
- B. -12
- C. 7
- D. -7
Answer: B. -12
A negative number multiplied by a positive number gives a negative result. Since 4 × 3 = 12, the answer is -12.
A negative number multiplied by a positive number gives a negative result. Since 4 × 3 = 12, the answer is -12.
Find the value of 15 - (-6).
- A. 9
- B. 21
- C. -21
- D. -9
Answer: B. 21
Subtracting a negative number is the same as adding its positive value. So, 15 - (-6) = 15 + 6 = 21.
Subtracting a negative number is the same as adding its positive value. So, 15 - (-6) = 15 + 6 = 21.
Evaluate (-6) × [(-3) + 5].
- A. -12
- B. 12
- C. -18
- D. 18
Answer: A. -12
First solve the bracket: (-3) + 5 = 2. Then multiply: (-6) × 2 = -12.
First solve the bracket: (-3) + 5 = 2. Then multiply: (-6) × 2 = -12.
If x = -3, what is the value of 2x - 5?
- A. -11
- B. -1
- C. 1
- D. 11
Answer: A. -11
Substitute x = -3 into the expression: 2(-3) - 5 = -6 - 5 = -11.
Substitute x = -3 into the expression: 2(-3) - 5 = -6 - 5 = -11.