Question

Please solve it fast with explanation ​

Answer 1

Answer:

I will try to answer

Step-by-step explanation:

i am thinking

Answer 2

1)|50|+|-30|+|20|-|-50|

=50-30+20+50

=120-30

=90

2)300-(-300)+600-(-700)

=300+300+600+700

=1900

3)400+500-(-900)-1800

=400+500+900-1800

=1800-1800

=0

4)(-5)×(-7)×(-8)×(-9)

=35×72

=2420

5)(-4)×(-7)×(-15)

=-28×15

=420

6)(-80)×(-70)×0

=0

7)(-40)×(-32)×(-80)

=3200×-32

=-102400

8)-2019÷2019

=-1

9)700÷-35

=-20

10)(-800)÷40

=-20.