# Khan/khan-exercises

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 Basic multiplication
randRange(0, 10) randRange(0, 10)
init({ range: [ [ -1, 12 ], [ -3, B + 1 ] ], scale: [ 50, 50 ] }); KhanUtil.currentGraph.labelHolder = label( [ 0, B ], "\\Huge{\\color{#6495ED}{" + A + "} \\times \\color{#28AE7B}{" + B + "} = {?}}", "right" );
A * B
label( [ 0, B - 1 ], $.ngettext("Draw %(num)s circle.", "Draw %(num)s circles.", A), "right", false ); drawRow( A, B - 3, "#6495ED", 1 ); if (isSingular(A)) { label( [ 0, B - 2 ],$.ngettext( "If there is %(num)s row with %(a)s circle, <br> there are a total of how many circles?", "If there are %(num)s rows with %(a)s circle each, <br>there are a total of how many circles?", B, {a: A}), "right", false ); } else { label( [ 0, B - 2 ], $.ngettext( "If there is %(num)s row with %(a)s circles, <br> there are a total of how many circles?", "If there are %(num)s rows with %(a)s circles each, <br>there are a total of how many circles?", B, {a: A}), "right", false ); } for ( var i = 1; i < B; i++ ) { drawRow( A, B - 3 - i, "#28AE7B", A * i + 1 ); } label( [ 0, B - 1 ], "\\large{\\text{" +$._("Multiplying any number by 0 equals 0.") + "}}", "right" );
KhanUtil.currentGraph.labelHolder.remove(); label( [ 0, B ], "\\Huge{\\color{#6495ED}{" + A + "} \\times \\color{#28AE7B}{" + B + "} = " + ( A * B ) + "}", "right" );