Question

alguine q sepa estas operaciones combinadas si me pudieran ayudar

Answer 1

21. -{3+5}-{4-[-5-2+5-2]}

-3+5-{4-[-7+3]}

+2-{4-(-4)}

+2 -8

-6

22. 4-[2.(-2)-(3).(-5)]

4-[-4-3.(-5)]

4-[-4+15]

4-11

-7

23. (7-5).[3-2-4:2-3.(6-2-8:4)]

2. [ -4.2]

2.-8

-16

24. 4-3.[-2+5-3.(-2-3:3)-10:2+3]

1.[0.-3-2]

1.-2

-2

25. 10:[(3-5).(2-4)+10:(-3-2)]

10:[-2.-2+10:-5]

10:[+4-2]

10:2

5

26. 8:-2-2.[-3.-3-6:2]

8:-4.[12]

-2.12

-28