truetruefalse-1WIDGETSOn donne l'expression suivante :
$$A=2\times(5\times6-2)\times7$$

Que peut-on dire de cette expression ?

Votre réponse :
C'est de   .
this.onload = function() {
    var me = this;
    var wait = function() {
        if ((me.reponse.find("#input-1") === null) || (me.reponse.find("#input-2") === null)) {
            setTimeout(wait, 100);
        } else {
            var r1 = me.reponse.find("#input-1");
            var r2 = me.reponse.find("#input-2");
            var c1 = me.question.find("#choice-1");
            var c2 = me.question.find("#choice-2");
            var sp = me.question.find("#terme_facteur");
            var fixsp = function() {
    switch (c1.value) {
                    case "1":
                        sp.inner("termes");
                        break;
                    case "2":
                        sp.inner("facteurs");
                        break;
                    default:
                        sp.inner("");
                }
         };
            c1.onchange = function() {
                fixsp();
                r1.value = c1.value;
                r1.dispatchEvent(new KeyboardEvent('keyup', {}));
            };
            c2.onchange = function() {
                r2.value = c2.value;
                r2.dispatchEvent(new KeyboardEvent('keyup', {}));
            };
            c1.value = (r1.value === "") ? "0" : r1.value;
            c2.value = (r2.value === "") ? "0" : r2.value;
            fixsp();
            me.reponse.hide();
        }
    };
    wait();
}


[["2","int"],["3","int"]]custom-line{"inps":[["a","int"],["b","int"]],"sfx":"z"}Encadrer ci-dessous le nombre $$\sqrt{60}$$ par deux entiers consécutifs :

     <\sqrt{60}<


this.onload = function() {
    var ME = this;
    var TXT = ME.inside;
    var i1 = $.create("input")
        .stl("display:inline-block;outline:none;padding:0px;text-align:center;width:100px")
        .cls("w3-input w3-xlarge w3-round-large w3-border w3-margin-right")
        .att("type:text;pattern:[0-9]*;autocomplete:off;autocorrect:off;autocapitalize:off;spellcheck:false");
    var i2 = $.create("input")
        .stl("display:inline-block;outline:none;padding:0px;text-align:center;width:100px")
        .cls("w3-input w3-xlarge w3-round-large w3-border w3-margin-left")
        .att("type:text;pattern:[0-9]*;autocomplete:off;autocorrect:off;autocapitalize:off;spellcheck:false");
    var div = $.create("div")
        .stl("text-align:center;background-color:#1F96F3;color:white;padding-top:20px;padding-bottom:20px")
        .att("id:customized_answer");
    var txt = $.create("span")
        .cls("w3-xlarge")
        .inner(katex.renderToString(TXT));
    div.add(i1).add(txt).add(i2);
    var old = ME.question.parentNode.find("#customized_answer");
    if (old) old.remove();
    ME.question.parentNode.add(div);
    var N = [i1, i2];
    N[0].value = N[1].value = "";
    var inp = ME.input.value.split("//");
    for (var i = 0; i < inp.length; i++) {
        N[i].value = inp[i];
    };
    var keyup = function(e) {
        ME.input.value = N[0].value + "//" + N[1].value;
        ME.input.dispatchEvent(new KeyboardEvent('keyup', {}));
    };
    var keydown = function(e) {
        ME.input.dispatchEvent(new KeyboardEvent('keydown', { 'key': e.key }));
        if (["Backspace", "ArrowLeft", "ArrowRight", "Tab"].includes(e.key)) return true;
        if (e.key === "Enter") {
            return false
        };
        var old = e.target.value;
        var start = e.target.selectionStart;
        var end = e.target.selectionEnd;
        old = [old.slice(0, start), e.key, old.slice(end)].join('');
        return ((/^-$/.test(old)) || (/^-?\d+$/.test(old)));
    };
    N[0].onkeyup = N[1].onkeyup = keyup;
    N[0].onkeydown = N[1].onkeydown = keydown;
    ME.reponse.hide();
};

7//8int
Transformer la soustraction ci-dessous en addition :


     7-(-4)


this.onload = function() {
    var ME = this;
    var TXT = ME.inside;
    var i1 = $.create("input")
        .stl("display:inline-block;outline:none;padding:0px;text-align:center;width:100px")
        .cls("w3-input w3-xlarge w3-round-large w3-border w3-margin-right")
        .att("type:text;pattern:[0-9]*;autocomplete:off;autocorrect:off;autocapitalize:off;spellcheck:false");
    var i2 = $.create("input")
        .stl("display:inline-block;outline:none;padding:0px;text-align:center;width:100px")
        .cls("w3-input w3-xlarge w3-round-large w3-border w3-margin-left")
        .att("type:text;pattern:[0-9]*;autocomplete:off;autocorrect:off;autocapitalize:off;spellcheck:false");
    var div = $.create("div")
        .stl("text-align:center;background-color:#1F96F3;color:white;padding-top:20px;padding-bottom:20px")
        .att("id:customized_answer");
    var txt = $.create("span")
        .cls("w3-xlarge")
        .inner(katex.renderToString(TXT+"=")+" ");
    var eq = $.create("span")
        .cls("w3-xlarge")
        .inner("+");
    div.add(txt).add(i1).add(eq).add(i2);
    var old = ME.question.parentNode.find("#customized_answer");
    if (old) old.remove();
    ME.question.parentNode.add(div);
    var N = [i1, i2];
    N[0].value = N[1].value = "";
    var inp = ME.input.value.split("//");
    for (var i = 0; i < inp.length; i++) {
        N[i].value = inp[i];
    };
    var keyup = function(e) {
        ME.input.value = N[0].value + "//" + N[1].value;
        ME.input.dispatchEvent(new KeyboardEvent('keyup', {}));
    };
    var keydown = function(e) {
        ME.input.dispatchEvent(new KeyboardEvent('keydown', { 'key': e.key }));
        if (["Backspace", "ArrowLeft", "ArrowRight", "Tab"].includes(e.key)) return true;
        if (e.key === "Enter") {
            return false
        };
        var old = e.target.value;
        var start = e.target.selectionStart;
        var end = e.target.selectionEnd;
        old = [old.slice(0, start), e.key, old.slice(end)].join('');
        return ((/^-$/.test(old)) || (/^-?\d+$/.test(old)));
    };
    N[0].onkeyup = N[1].onkeyup = keyup;
    N[0].onkeydown = N[1].onkeydown = keydown;
    ME.reponse.hide();
};

7//4int
Ecrire sous forme de "mixed number" la fraction suivante :

$$\dfrac{14}{3}$$




this.onload = function() {
    var ME = this;
    var TXT = ME.inside;
    var div0 = $.create("div")
        .stl("position:relative;display:inline-block;width:120px;height:100px;margin:0px;padding:0px");
    var div1 = $.create("div")
        .stl("position:relative;display:inline-block;width:120px;height:100px;margin:0px;padding:0px");
    var div2 = $.create("div")
        .stl("position:absolute;background-color:white;width:120px;height:4px;margin:0px;padding:0px;left:0px;top:48px");
    var i0 = $.create("input")
        .stl("position:absolute;left:10px;top:0px;outline:none;padding:0px;text-align:center;width:100px;height:100px;font-size:75px")
        .cls("w3-input w3-round-large w3-border w3-margin-right")
        .att("type:text;pattern:[0-9]*;autocomplete:off;autocorrect:off;autocapitalize:off;spellcheck:false");
    var i1 = $.create("input")
        .stl("position:absolute;left:10px;top:0px;outline:none;padding:0px;text-align:center;width:100px")
        .cls("w3-input w3-xlarge w3-round-large w3-border")
        .att("type:text;pattern:[0-9]*;autocomplete:off;autocorrect:off;autocapitalize:off;spellcheck:false");
    var i2 = $.create("input")
        .stl("position:absolute;left:10px;bottom:0px;outline:none;padding:0px;text-align:center;width:100px")
        .cls("w3-input w3-xlarge w3-round-large w3-border")
        .att("type:text;pattern:[0-9]*;autocomplete:off;autocorrect:off;autocapitalize:off;spellcheck:false");
    var div = $.create("div")
        .stl("text-align:center;background-color:#1F96F3;color:white;padding-top:20px;padding-bottom:20px")
        .att("id:customized_answer");
    div0.add(i0);
    div1.add(i1).add(div2).add(i2);
    div.add(div0).add(div1);
    var old = ME.question.parentNode.find("#customized_answer");
    if (old) old.remove();
    ME.question.parentNode.add(div);
    var N = [i0, i1, i2];
    N[0].value = N[1].value = N[2].value = "";
    var inp = ME.input.value.split("//");
    for (var i = 0; i < inp.length; i++) {
        N[i].value = inp[i];
    };
    var keyup = function(e) {
        ME.input.value = N[0].value + "//" + N[1].value + "//" + N[2].value;
        ME.input.dispatchEvent(new KeyboardEvent('keyup', {}));
    };
    var keydown = function(e) {
        ME.input.dispatchEvent(new KeyboardEvent('keydown', { 'key': e.key }));
        if (["Backspace", "ArrowLeft", "ArrowRight", "Tab"].includes(e.key)) return true;
        if (e.key === "Enter") {
            return false
        };
        var old = e.target.value;
        var start = e.target.selectionStart;
        var end = e.target.selectionEnd;
        old = [old.slice(0, start), e.key, old.slice(end)].join('');
        return ((/^-$/.test(old)) || (/^-?\d+$/.test(old)));
    };
    N[0].onkeyup = N[1].onkeyup = N[2].onkeyup = keyup;
    N[0].onkeydown = N[1].onkeydown = N[2].onkeydown = keydown;
    ME.reponse.hide();
};

4//2//3text
Transformer la soustraction ci-dessous en addition :
 

     7-(-4)


this.onload = function() {

var ME = this;
var W = ME.question.parentNode;
var R = ME.reponse;
var TDS = R.find("#COLS").findAll("td");
for (var i = 0; i < TDS.length; i++) {
    TDS[i].hide();
};
}

[["","int"],["","int"],["","int"],["","int"],["","int"],["","int"],["","int"],["","int"]]custom-line{"inps":[["","int"],["$$\\times$$","int"],["$$\\times$$","int"],["$$\\times$$","int"],["$$\\times$$","int"],["$$\\times$$","int"],["$$\\times$$","int"],["$$\\times$$","int"]],"sfx":""}