Question

Elimine os parenteses e os colchetes e caucule o valor de:

Answer 1

Resposta:

a)35+[21-(-12+15)]

35+[-21+3]

35-18

17

b)-20[-21+(-20-16)+11]

-20[-21-36+11]

-20+46

26

c)20-(16+17)-[15-(18-23)]

20-33-[15-5]

20-33-10

23

d)-(-30)-[37+(35-31-34)-36]

+30-[37-30-36]

+30+29

59