Question

Hola me pueden ayudar por favor

Answer 1

Answer:

3+(-3)

[+ × - = -]

3-3=0

15+(-3)

15-3=12

-3+(-3)

-3-3=-6

-9+(-3)

-9-3=-12

5/-1.21

[+ ÷ - = - ]

-1.21=-[121/100]

5/-[121/100]

5× -[100/121]

-[500/121]

-[4 16/121] or -[4.13](2 d.p)

-6/5÷1/3

-6/5×3/1

-18/5

-3.6

-8.4÷(-2.2)

- ÷ - = +

8.4÷2.2

84/10÷22/10

84/22

3.82(2d.p)

7/8÷(-1/6)

7/8 × -6/1

-42/8

-5.25

12×()= -180

make () the subject of formula by dividing both side by 12

()=-180/12

()= -15

()=(-11)-99

()=1089

-8×()=-168

()=-168/-8

()=21

()×(25)=-150

()=-150/25

()=-6

()×(-11)=99

()=99/-11

()=-9