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All questions of Integers for Class 6 Exam

- 4 – (- 4) =?
  • a)
    -8
  • b)
    0
  • c)
    + 8
  • d)
    none of these
Correct answer is option 'B'. Can you explain this answer?

Ayush Desai answered
Explanation:

Subtraction of Negative Numbers:
When subtracting a negative number from another negative number, we can think of it as adding the absolute value of the second number to the first number.

Calculation:
-4 - (-4) = -4 + 4
= 0
Therefore, 4 - (-4) equals 0.

Final Answer:
Option B) 0

Value of expression 4 – ( - 17) is
  • a)
    + 21
  • b)
    0
  • c)
    -21
  • d)
    none of these
Correct answer is option 'A'. Can you explain this answer?


Calculation of the expression 4 - (-17):

First, we need to understand that subtracting a negative number is the same as adding a positive number. In this case, the expression 4 - (-17) can be rewritten as 4 + 17.

Solution:
- 4 + 17 = 21

Therefore, the value of the expression 4 - (-17) is 21.

Final Answer:
a) +21

What is the sum of +7 and -3 on the number line?
  • a)
    +10
  • b)
    +4
  • c)
    -4
  • d)
    -10
Correct answer is option 'B'. Can you explain this answer?

Bibek Shah answered
Understanding the Problem
To find the sum of +7 and -3 on the number line, we can visualize the movement along the line.
Step 1: Start at +7
- Imagine starting at the position +7 on the number line.
- The number +7 indicates you are 7 units to the right of 0.
Step 2: Move Left by 3
- The next step is to add -3, which means you are moving 3 units to the left from +7.
- Moving left on the number line decreases the value.
Step 3: Calculate the Final Position
- Starting at +7, moving left 3 units means:
- 7 - 3 = 4
- Thus, your final position on the number line is +4.
Conclusion
- The sum of +7 and -3 is +4.
- Hence, the correct answer is option 'B' which is +4.
Key Points to Remember
- Adding a positive number moves you right on the number line.
- Adding a negative number (subtracting) moves you left on the number line.
- Always visualize the number line to better understand positive and negative movements.
In summary, when you add +7 and -3, you end up with +4, confirming that option 'B' is indeed correct!

What is the absolute value of -8?
  • a)
    8
  • b)
    -8
  • c)
    0
  • d)
    -6
Correct answer is option 'A'. Can you explain this answer?

Edu Impact answered
The absolute value of an integer is its numerical value without regard to its sign.
Thus, the absolute value of -8 is 8.

Which of the following is an example of opposite numbers?
  • a)
    3 and -2
  • b)
    -3 and 3
  • c)
    5 and 10
  • d)
    0 and -1
Correct answer is option 'B'. Can you explain this answer?

Crafty Classes answered
Opposite numbers are integers that are located on opposite sides of zero on the number line and are equidistant from it.
Thus, -3 and 3 are opposite numbers.

Going up 16 floors =
  • a)
    1
  • b)
    0
  • c)
    -16
  • d)
    +16
Correct answer is option 'D'. Can you explain this answer?

When you move upwards or increase in floors, the number is positive.
Going up 16 floors means a positive change of 16 floors.
 Therefore, the correct representation for going up 16 floors is the number 16.

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