Resposta:
a) [tex]\underline{\phantom{xx}2\phantom{xx}}<2,8<\underline{\phantom{xx}3\phantom{xx}}[/tex]
b) [tex]\underline{\phantom{xx}0\phantom{xx}}<0,7<\underline{\phantom{xx}1\phantom{xx}}[/tex]
c) [tex]\underline{\phantom{xx}2\phantom{xx}}>1,9>\underline{\phantom{xx}1\phantom{xx}}[/tex]
d) [tex]\underline{\phantom{xx}80\phantom{x}}<80,02<\underline{\phantom{x}81\phantom{xx}}[/tex]
e) [tex]\underline{\phantom{xx}6\phantom{xx}}>5,61>\underline{\phantom{xx}5\phantom{xx}}[/tex]
f) [tex]\underline{\phantom{xx}11\phantom{x}}>10,5>\underline{\phantom{xx}10\phantom{x}}[/tex]
Explicação passo-a-passo:
Quando tiveres a<b entenda "a menor que b"
Quando tiveres a>b entenda "a maior que b"
