Question

helm me in this question( with explanation)​

Answer 1

Answer:

-55-90+100+30 (--=+)

-55-90+130( using dmas rule)

-145+130

-15

Answer 2

Answer:

The correct answer is

-15

Step-by-step explanation:

You should know these:-

- and - becomes +

+ and + becomes +

- and + becomes -

+ and - becomes -

And the integer which has a greater value than other number, will be placed at the result

It wont be applied in the cases like -(-100)

Now,

For convenience, we will divide it into two parts

(-55)+(-90)

And

-(-100)+30

We will break brackets

-55+(-90)

=-55-90

=-145

-(-100)+30

=100+30

=130

And

-145+130

-15

We can see that,

- and + became to do operation of subtract

But as 145 had a greater value with '-' integer,

It became

-15

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-Thanks