Question

1) (-80)+(+40) + (-30) +(+6)​

Answer 1

Answer:

-64

Step-by-step explanation:

(-80)+(+40)+(-30)+(+6)

note :

+ x + = +

- x - = +

+ x - = -

- x + = -

answer :

-80+40-30+6

seperate terms, + symbol one side and - symbol other side

= -80-30+40+6

= -80-30+46 { according to bodmass rule + first }

= -110+46 { according to note - x - = +, so we added 80,30 and we kept - symbol }

= -64

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Answer 2

Given :

1) (-80)+(+40) + (-30) +(+6)

To solve :

Simplification

Solution :

1) (-80)+(+40) + (-30) +(+6)

First step : Solve the brackets

Second step : Apply the rule of Integers that is

( + ) + ( + ) = +

( - ) + ( - ) = +

( + ) + ( - ) = -

( - ) + ( + ) = -

= - 80 + 40 - 30 + 6

Third step : Calculate the numbers

= - 40 - 24

= - 64