# exo46.tex

%@Dif:3
Recopie et complète les suites de calculs ci-dessous.
\par\vspace{5mm}\par
\begin{myenumerate}
\item2\,\rnode{A}{}\kern2cm\rnode{B}{}\,\ldots\,\rnode{C}{}\kern2cm\rnode{D}{}\,\ldots\,\rnode{E}{}\kern2cm\rnode{F}{}\,\ldots\,\rnode{G}{}\kern2cm\rnode{H}{}\,\ldots
\ncarc[offset=3mm,nodesep=1mm,arcangle=30]{->}{A}{B}
\ncput*{\psovalbox{\footnotesize$+2$}}
\ncarc[offset=3mm,nodesep=1mm,arcangle=30]{->}{C}{D}
\ncput*{\psovalbox{\footnotesize$\times3$}}
\ncarc[offset=3mm,nodesep=1mm,arcangle=30]{->}{E}{F}
\ncput*{\psovalbox{\footnotesize$-2$}}
\ncarc[offset=3mm,nodesep=1mm,arcangle=30]{->}{G}{H}
\ncput*{\psovalbox{\footnotesize$\div5$}}
\par\vspace{5mm}\par
\item4\,\rnode{A}{}\kern2cm\rnode{B}{}\,\ldots\,\rnode{C}{}\kern2cm\rnode{D}{}\,\ldots\,\rnode{E}{}\kern2cm\rnode{F}{}\,\ldots\,\rnode{G}{}\kern2cm\rnode{H}{}\,\ldots
\ncarc[offset=3mm,nodesep=1mm,arcangle=30]{->}{A}{B}
\ncput*{\psovalbox{\footnotesize$\times4$}}
\ncarc[offset=3mm,nodesep=1mm,arcangle=30]{->}{C}{D}
\ncput*{\psovalbox{\footnotesize$+1$}}
\ncarc[offset=3mm,nodesep=1mm,arcangle=30]{->}{E}{F}
\ncput*{\psovalbox{\footnotesize$-2$}}
\ncarc[offset=3mm,nodesep=1mm,arcangle=30]{->}{G}{H}
\ncput*{\psovalbox{\footnotesize$\div3$}}
\par\vspace{5mm}\par
\item12\,\rnode{A}{}\kern2cm\rnode{B}{}\,\ldots\,\rnode{C}{}\kern2cm\rnode{D}{}\,\ldots\,\rnode{E}{}\kern2cm\rnode{F}{}\,\ldots\,\rnode{G}{}\kern2cm\rnode{H}{}\,\ldots
\ncarc[offset=3mm,nodesep=1mm,arcangle=30]{->}{A}{B}
\ncput*{\psovalbox{\footnotesize$\div3$}}
\ncarc[offset=3mm,nodesep=1mm,arcangle=30]{->}{C}{D}
\ncput*{\psovalbox{\footnotesize$\times6$}}
\ncarc[offset=3mm,nodesep=1mm,arcangle=30]{->}{E}{F}
\ncput*{\psovalbox{\footnotesize$\div8$}}
\ncarc[offset=3mm,nodesep=1mm,arcangle=30]{->}{G}{H}
\ncput*{\psovalbox{\footnotesize$+5$}}
\par\vspace{5mm}\par
\end{myenumerate}