MILENA 9 E MARIA VITÓRIA 9 ANOS
EXPRESSÕES NUMÉRICAS
3 + 2 - 1 X( 5- 4 ) =
3+2-1X1=
3+2-1=
5-1=
4
5 + 1 X 2 - 1 : ( 2 : 2 ) =
5+1X2-1:1=
5+2-1:1=
7-1=
6
{ 10+ 2 X [ 30 +25 : ( 5 X 5 ) :1] -31 } =
{10+2X [30+25:25:1]-31}=
{10+2X[30+1:1]-31}=
{10+2X[30+1]-31}=
{10+2X31-31}=
{10+62-31}=
{72-31}=
41
3 + 2 - 1 X( 5- 4 ) =
3+2-1X1=
3+2-1=
5-1=
4
5 + 1 X 2 - 1 : ( 2 : 2 ) =
5+1X2-1:1=
5+2-1:1=
7-1=
6
{ 10+ 2 X [ 30 +25 : ( 5 X 5 ) :1] -31 } =
{10+2X [30+25:25:1]-31}=
{10+2X[30+1:1]-31}=
{10+2X[30+1]-31}=
{10+2X31-31}=
{10+62-31}=
{72-31}=
41