Question

Resolva as seguintes expressões aritméticas
a) (21+3)+(32+5)+(48+3)+1
b) (36+2)+[25+(22+4)+1]
c) (32+25)+{42+[17+(28+12)]+4}
d) (42+27)-(21-2)+5
e) (36-2)+[28-(12+4)+7}
f) (27+35)-{36+[17-(28-12)+12]}
g) (28-4x3)-(18-5x3)-5
h) [43+(3+2x7)x2-45]x3
i) {44-[(32-27)x3-2]x2}+(46-27)x3

Answer 1

a) (21+3)+(32+5)+(48+3)+1
24+37+51+1=113
b) (36+2)+[25+(22+4)+1]
38+[25+26+1]
38+52=90
c) (32+25)+{42+[17+(28+12)]+4}
57+{42+[17+40]+4}
57+42+57+4
99+61=160
d) (42+27)-(21-2)+5
69-19+5
50+5=55
e) (36-2)+[28-(12+4)+7}
34+[28-16+7]
34+12+7
46+7=53
f) (27+35)-{36+[17-(28-12)+12]}
62-{36+[17-16+12]}
62-{36+1+12}
62-49=13
g) (28-4.3)-(18-5.3)-5
(28-12)-(18-15)-5
16-3-5
16-8=8
h) [43+(3+2.7).2-45].3
[43+3+14.2-45].3
46+28-45.3
74-135=-61
i) {44-[(32-37).3-2].2}+(46-27).3
{44-[-5.1].2}+19.3
{44-[-5].2}+57
{44+10}+57
54+57=111