Test: Integers - Class 6 MCQ

The sum of -19 and -21 is calculated as follows:
(−19)+(−21)=−40
So, the correct answer is (a) -40.

• -1 is less than 0 because on the number line, -1 is to the left of 0.
• 1 is greater than 0, so the statement "1 < 0"="" is="" />
• -8 is less than -7, making "-8 > -7" false.
• -2 is less than 4, so "-2 > 4" is also incorrect.

• Therefore, the only true statement is "-1 < />

Let's examine each statement to verify its correctness:

1. Statement: −7+(−6)=−13

   • Solution: Adding two negative numbers, −7+(−6)=−13-7 + (-6) = -13−7+(−6)=−13.
   • Result: This statement is true.

2. Statement: −5+1=4

   • Solution: Adding −5 and 1 gives −4, not 4.
   • Result: This statement is false.

3. Statement: 2+(−1)=1

   • Solution: Adding 2 and −1 gives 1.
   • Result: This statement is true.

4. Statement: 8+(−9)=−1

   • Solution: Adding 888 and −9 gives −1.
   • Result: This statement is true.

Therefore, the false statement is:

2: −5+1=4. The correct result should be −5+1=−4.

The opposite of any negative number is it's positive counterpart. Therefore, opposite of -7 would be 7.

When adding integers with different signs, the sign of the sum depends upon the sign of the number with the greater absolute value. This can be understood by regrouping and then using addition of opposites.

= (-8) - 3

= -8 - 3 

= - 11

try to  convert this statment in mathematical equation and you will get your answer

= ( -30) + (-12)

= -30 - 12

= -42 

• Start with -4.
• Add -6: -4 + (-6) = -10.
• Add -8: -10 + (-8) = -18.
• Add 8: -18 + 8 = -10.

The sum of -3 and -2 is calculated as follows:
(−3)+(−2)=−5
So, the correct answer is (c) -3, -2.

Let x be the number that needs to be added to -5 to get 4. The equation is:
(−5)+x=4
Solving for 
x=4+5=9
So, the correct answer is (d) 9.