Question

Resolva as expressões numéricas abaixo.

a) 5.12:6.45

b) 12.3+(6+5.12):11

c) 180+{2.[5.3+(8.4-2.9)]}

me ajudem por favor ;)​​

Answer 1

a) 5.12:6.45=

60:270=

0,222...

b)12.3+(6+5.12):11=

36+(6+60):11=

36+66:11=

36+6=

42

c)180+(2.(5.3+(8.4-2.9)))=

180+(2.(15+(32-18)))=

180+(2.(15+14))=

180+(2.29)=

180+58=

238