Question

calcule as expressões
a) 12+[5-(3-2)]=

b)63+[9+(48:4-10)+2=

c)3×{15+[5+(12:6)+7]+4}

d)(19-16):3=

e)(46+98):12=

d)(16+3)×8=​

Answer 1

a) 12+[5-(3-2)]= 12+(5-1)=12+4 = 16

b)63+[9+(48:4-10)+2= 63+[9+(12-10)] = 63+(11) = 74

c)3×{15+[5+(12:6)+7]+4}  = 3 x {15+[5+(2)+7]+4] = 3 x (19+14) = 3 x 33 = 99

d)(19-16):3=  3:3 = 1

e)(46+98):12=  144:12 = 12

d)(16+3)×8=​ 18 x 8 = 144