Question

EXPRESSOES
A-21-(32-25)
B-44-(4.9-25)-12
C-61-(54-24:4)
D-25- {20+[18-(13+10:2)]}
E-69-[26+(67-42)}
F-4+{(55-2.9)-(40:2+6

Answer 1

A)21-(32-25)=
21-(7)=
21-7=14
B)44-(4*9-25)-12=
44-(36-25)-12=
44-(11)-12=
44-11-12=21
C)61-(54-24:4)
61-(54-6)
61-(48)
61-48
13
D)25-{20+[18-(13+10:2)]}
25-{20+[18-(13+5)]}
25-{20+[18-18]}
25-{20+0}
25-20=-5
E)69-[26+(67-42)]
69-[26+(25)]
69-[51]
69-51=18
F)4+{(55-2*9)-(40:2+6)}
4+{(55-18)-(20+6)}
4+{37-26}
4+11=15

Answer 2

a -21-32+25
-53+25
-28