All questions of Integers for Class 6 Exam
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
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
remember the more smaller the negative number is greater it is
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!
The absolute value of an integer is its numerical value without regard to its sign.
Thus, the absolute value of -8 is 8.
In ascending order, we arrange the numbers from the smallest to the largest.
Thus, the correct order is -3, -2, -1, 0, 1.
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.
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.
On the number line, 0 lies to the right of all negative integers, so it is greater than all negative integers.