Instructions:
Click "Start" to do the drill;
Key Pad:
- Click "Hide/Show Carry" to hide or show carry as a red dot;
- Click "Show/Hide Hint" to show of hide hint;
- Click number keys to enter your answer;
- Click "DEL" to erase the most recenly entered digit;
- Click "AC" to clear all digits;
- Click "=" to check your answer.
Key board:
- Type the number keys to enter your answer;
- Press "Delete" to erase the most recenly entered digit;
- Press "Backspace" to clear all digits;
- Press the Space bar, "=" or "Enter" to check your answer.
var min1=10;
var max1=20;
var min2=1;
var max2=9;
var n=0;
var N=20;
var NN=1000;
var wrong=0;
var repeat=0;
var X=[];
var Y=[];
var done=false;
var x=0;
var y=0;
var s=getURLpara();
var paraStr=window.location.search;
//if (paraStr.length>4) {
// var s=paraStr.substring(3).split(/[=,]+/);
if (s.length>=5) {
N =parseInt(s[0]);
min1=parseInt(s[1]);
max1=parseInt(s[2]);
min2=parseInt(s[3]);
max2=parseInt(s[4]);
}
//}
) processed by MyLexV4 -->