Question

Find the value of
1. -42+(-62)
2. 44-(-62)+(-19)
3.50-(-40)+(-21)
4. 37+(-2)+(-65)+(-20)
5. -32-(-42)+(-2)

Answer 1

Answer :

We know

+ $\times$ + = +
And
+ $\times$ - = -
And
- $\times$ - = +
So,

1 ) - 42 + ( - 62 )

= - 42 - 62

= - 104 ( Ans )

2 ) 44 - ( - 62 ) + ( -19 )

= 44 + 62 - 19

= 87 ( Ans )

3 ) 50 - ( - 40 ) + ( - 21 )

= 50 + 40 - 21

= 69 ( Ans )

4 ) 37 + ( - 2 ) + ( - 65 ) + ( - 20 )

= 37 - 2 - 65 - 20

= - 50 ( Ans )


5 ) - 32 - ( - 42 ) + ( - 2 )

= - 32 + 42 - 2

= 8 ( Ans )