Le voici
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<title>Expression C</title>
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<td width="100%" align="center"><font face="Comic Sans MS" color="#000080" size="4">Expression
C</font></td>
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<td width="100%" valign="middle"><script language="JavaScript"><!--
function test(form)
{res=0
pas_de_reponse=0
for(i=3;i>-1;i--){if(document.forms[0].elements[i].value=="") {pas_de_reponse++;document.forms[0].elements[i].focus()}}
if(pas_de_reponse!=0) alert("Je veux que tu inscrives un nombre dans chaque zone de saisie!")
else{
if(form.T4.value==4){res++;form.T2.style.color="blue";}else{form.T2.style.color="red";form.T2.focus()}
if(form.T3.value==21){res++;form.T2.style.color="blue";}else{form.T2.style.color="red";form.T2.focus()}
if(form.T2.value==-){res++;form.T2.style.color="blue";}else{form.T2.style.color="red";form.T2.focus()}
if(form.T1.value==25){res++;form.T1.style.color="blue";}else{form.T1.style.color="red";form.T1.focus()}
if(res==4){form.note.value="Très bien!"}
if(res==3){form.note.value="Une petite erreur! Corrige-la!"}
if(res<2){form.note.value=(6-res)+" erreurs! corrige-les!"}}}
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<td width="100%" valign="middle"><font size="3" face="Comic Sans MS">Calculer l'expression suivante:</font>
<br> <font face="Comic Sans MS"><font size="4"> C = 25 - 7 x 3</font></td> </tr>
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<br> <font face="Comic Sans MS"><font size="4"> C = </font>
<font face="Comic Sans MS"><font size="4"> <input
type="text" size="2" name="T1" onchange="document.forms[0].T1.style.color='blue'"
style="font-family: Comic Sans MS; font-size: 14pt; text-align: center; background-color: rgb(234,234,244); color: rgb(0,0,255); border: medium none"
tabindex="1"> </font><input
type="text" size="2" name="T2" onchange="document.forms[0].T2.style.color='blue'"
style="font-family: Comic Sans MS; font-size: 14pt; text-align: center; background-color: rgb(234,234,244); color: rgb(0,0,255); border: medium none"
tabindex="1"> <input
type="text" size="2" name="T3" onchange="document.forms[0].T3.style.color='blue'"
style="font-family: Comic Sans MS; font-size: 14pt; text-align: center; background-color: rgb(234,234,244); color: rgb(0,0,255); border: medium none"
tabindex="1"> <font size="5"><script language="JavaScript"><!--
document.forms[0].T1.focus()
// --></script> </td> </tr>
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<td width="100%" valign="middle"><font face="Comic Sans MS"><br>
<font size="4"> C = </font><input type="text" size="4" name="T4"
onchange="document.forms[0].T4.style.color='blue'"
style="font-family: Comic Sans MS; font-size: 14pt; text-align: center; background-color: rgb(234,234,244); color: rgb(0,0,255); border: medium none"
tabindex="6"></font></td>
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<td width="100%" valign="middle" align="left"><input type="button" name="B1"
value="Valider" onclick="test(this.form)"
style="background-color: rgb(252,217,182); font-family: Comic Sans MS; font-size: 12pt"
tabindex="7"><br>
<input type="text" size="28" name="note" readonly
style="font-family: Comic Sans MS; font-size: 16pt; text-align: center; color: rgb(255,0,0); background-image: url('../images/bg2.jpg'); border: medium none"></td>
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<td width="100%" valign="middle" align="right"><font face="Comic Sans MS">Un deuxième
calcul similaire non détaillé <a href="expc2.htm">ici!</a></font></td>
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