Question

4) resolva as expressões numericas a) 9+3.2= b) 6.12+6.8= c) 256-2.72-2.36= d) 27:3:3:3.10= e) 45-15:5.3= f) 54:(9.3-3.3)+3] g) [45-(3.5-2)]:8=

Answer 1

Resposta:

Explicação passo a passo:

a) 9+3.2= 9 + 6 = 15

b) 6.12+6.8= 72 + 48 = 120

c) 256-2.72-2.36= 256 - 144 - 72 = 112 - 72 = 40

d) 27:3:3:3.10= 9 : 3 : 3 . 10 = 3 : 3 . 10 = 1 . 10 = 10

e) 45-15:5.3=  45 -3 .3 = 42 . 3  = 126

f) 54:(9.3-3.3)+3 = 54:( 27-9) +3 = 54 : 18 + 3 = 3 + 3 = 6

g) [45-(3.5-2)]:8= [45 -(15 - 2 )]: 8 =[ 45 - 13] : 8 = 32 : 8 = 4

Bom dia!