Test: The Other Side of Zero - 1 - Class 6 MCQ

If you start at the Welcome Hall (Floor 0) and press the '+' button twice, you will move up one floor each time.

1. After pressing the '+' button once, you will reach Floor +1.
2. After pressing the '+' button again, you will reach Floor +2.

The correct answer is C: Floor +2.

The sum of -3 and +5 is:

−3 + 5 = +2

So, the correct answer is B: +2.

If you are at Floor -2 and press the '+' button 3 times, you will move up one floor each time:

1. Pressing the '+' button once moves you from Floor -2 to Floor -1.
2. Pressing the '+' button twice moves you from Floor -1 to Floor 0.
3. Pressing the '+' button three times moves you from Floor 0 to Floor +1.

The correct answer is A: Floor +1.

- Moving from 4 to -1 on the number line involves finding the difference between the two numbers.
- Calculate the difference: (-1 - 4 = -5).
- This means you move 5 units to the left, which is a negative direction on the number line.
- Hence, the result of moving from 4 to -1 is (-5).

Let's analyze the given statements:

A: -5 > -3 — This is false. Since -5 is to the left of -3 on the number line, it is smaller than -3.

B: 0 < -1 — This is false. 0 is greater than -1 on the number line.

C: +3 > -2 — This is true. +3 is greater than -2 on the number line.

D: -6 > 0 — This is false. -6 is smaller than 0 on the number line.

The correct statement is C: +3 > -2.

To find the change in temperature, subtract the final temperature from the initial temperature:

Change in temperature = Final temperature − Initial temperature

Here, the temperature drops from 5°C to -3°C:

Change in temperature = −3°C − 5°C = −8°C

So, the change in temperature is -8°C.

The correct answer is B: -8°C.

The additive inverse of a number is the number that, when added to the original number, gives a sum of 0.

For +7, the additive inverse is -7, because:

+7 + (−7) = 0

The correct answer is B: -7.

If you are at Floor +3 and move 5 floors down, you subtract 5 from +3:

+3 − 5 = −2

So, you will reach Floor -2.

The correct answer is A: Floor -2.

To subtract +8 from +6, we perform the operation:

6 − 8 = - 2

So, the result is - 2.

The correct answer is A: - 2.

If your bank balance is ₹100 and you spend ₹120, you will spend more than you have, resulting in a negative balance.

₹100 − ₹120 = ₹ − 20

So, your balance will be ₹-20.

The correct answer is C: ₹-20.