var vx=new Array(vmax);var vz=new Array(vmax);var vy=new Array(vmax);var vs=new Array(vmax);var v=0;
var toc = "sub.htm";
vx[v]="sub.htm"; vz[v]="Table of Contents";vy[v]="Table of Contents";v++; 
vx[v]="subk7fx2.htm"; vz[v]="Subtract Objects I"; vy[v]="Basic Subtraction";v++;
vx[v]="subk7gx2.htm"; vz[v]="Subtract Objects II"; vy[v]="Basic Subtraction";v++;
vx[v]="subk7hx2.htm"; vz[v]="Subtracting Numbers I"; vy[v]="Basic Subtraction";v++;
vx[v]="subk7ix2.htm"; vz[v]="Subtracting Numbers II"; vy[v]="Basic Subtraction";v++;
vx[v]="subk7jx2.htm"; vz[v]="Subtracting Using Words"; vy[v]="Basic Subtraction";v++;
vx[v]="sub26bx3.htm"; vz[v]="Subtraction Facts 0, 1 and 2"; vy[v]="Subtraction Facts";v++;
vx[v]="sub26bx4.htm"; vz[v]="Subtraction Facts 3 and 4"; vy[v]="Subtraction Facts";v++;
vx[v]="sub26bx5.htm"; vz[v]="Subtraction Facts 5 and 6"; vy[v]="Subtraction Facts";v++;
vx[v]="sub26bx6.htm"; vz[v]="Subtraction Facts 7 and 8"; vy[v]="Subtraction Facts";v++;
vx[v]="sub26bx7.htm"; vz[v]="Subtraction Facts 9 and 10"; vy[v]="Subtraction Facts";v++;
vx[v]="sub26bx2.htm"; vz[v]="Subtraction Facts All for 0 through 10"; vy[v]="Subtraction Facts";v++;
vx[v]="sub18dx2.htm"; vz[v]="Subtraction Equations - One Digit Numbers"; vy[v]="Subtraction";v++;
vx[v]="sub28_x3.htm"; vz[v]="Subtracting Tens"; vy[v]="Subtraction";v++;
vx[v]="sub28_x2.htm"; vz[v]="Subtraction Without Renaming"; vy[v]="Subtraction";v++;
vx[v]="sub28fx2.htm"; vz[v]="Subtraction Equations - Two Digit Numbers"; vy[v]="Subtraction";v++;
vx[v]="sub38_x2.htm"; vz[v]="Subtracting Hundreds"; vy[v]="Subtraction";v++;
vx[v]="sub28bx2.htm"; vz[v]="Subtraction Using Estimation"; vy[v]="Subtraction";v++;
vx[v]="sub28cx2.htm"; vz[v]="Subtraction using Mental Math"; vy[v]="Subtraction";v++;
vx[v]="sub28dx2.htm"; vz[v]="Subtraction using Pencil and Paper"; vy[v]="Subtraction";v++;
vx[v]="sub28ex2.htm"; vz[v]="Subtraction using a Calculator"; vy[v]="Subtraction";v++;
vx[v]="sub38osx.htm"; vz[v]="Subtraction of Three Digit Numbers"; vy[v]="Subtraction";v++;
vx[v]="sub38mx2.htm"; vz[v]="Subtraction Equations - Three Digit Numbers"; vy[v]="Subtraction";v++;
vx[v]="sub38gx1.htm"; vz[v]="Subtraction of Four Digit Numbers"; vy[v]="Subtraction";v++;
vx[v]="sub38lx2.htm"; vz[v]="Subtraction Equations - Four Digit Numbers"; vy[v]="Subtraction";v++;
vx[v]="sub38cx2.htm"; vz[v]="Subtraction of Five Digit Numbers"; vy[v]="Subtraction";v++;
vx[v]="sub516x2.htm"; vz[v]="Subtraction Equations - Five Digit Numbers"; vy[v]="Subtraction";v++;
vx[v]="sub38cx3.htm"; vz[v]="Subtraction of Six Digit Numbers"; vy[v]="Subtraction";v++;
vx[v]="sub516x3.htm"; vz[v]="Subtraction Equations - Six Digit Numbers"; vy[v]="Subtraction";v++;
vx[v]="sub38cx4.htm"; vz[v]="Subtraction of Seven Digit Numbers"; vy[v]="Subtraction";v++;
vx[v]="sub312x2.htm"; vz[v]="Subtraction of Decimal Tenths"; vy[v]="Subtraction Skills";v++;
vx[v]="sub45bx2.htm"; vz[v]="Subtraction of Money"; vy[v]="Subtraction Skills";v++;
vx[v]="sub46bx2.htm"; vz[v]="Estimating Differences"; vy[v]="Subtraction Skills";v++;
vx[v]="sub73ax2.htm"; vz[v]="Estimating Differences"; vy[v]="Subtraction Skills";v++;
vx[v]="sub47bx2.htm"; vz[v]="Subtraction"; vy[v]="Subtraction Skills";v++;
vx[v]="sub53_x2.htm"; vz[v]="The Four Basic Operations"; vy[v]="Subtraction Skills";v++;
vx[v]="sub65_x4.htm"; vz[v]="Integer Subtraction"; vy[v]="Subtraction Skills";v++;
vx[v]="subtsbwd.htm"; vz[v]="Time - Subtract Days and Weeks"; vy[v]="Subtraction Skills";v++;
vx[v]="subtsbdh.htm"; vz[v]="Time - Subtract Days and hours"; vy[v]="Subtraction Skills";v++;
vx[v]="subtsbhm.htm"; vz[v]="Time - Subtract hours and minutes"; vy[v]="Subtraction Skills";v++;
vx[v]="subtsbms.htm"; vz[v]="Time - Subtract Minutes and seconds"; vy[v]="Subtraction Skills";v++;
vx[v]="sub28zx2.htm"; vz[v]="Subtracting Roman Numerals"; vy[v]="Subtraction Skills";v++;
vx[v]="sub_2deci.htm"; vz[v]="Subtract 2 Decimals"; vy[v]="Subtraction Skills";v++;
vx[v]="sub_lboz.htm"; vz[v]="Subtract Pounds and Ounces"; vy[v]="Subtraction Skills";v++;
vx[v]="sub-est-dec-diff.htm"; vz[v]="Estimate Decimal Difference"; vy[v]="Subtraction Skills";v++;
vx[v]="sub-ftin.htm"; vz[v]="Subtract Feet and Inches"; vy[v]="Subtraction Skills";v++;
vx[v]="sub39_x2.htm"; vz[v]="Division Subtraction Relationship"; vy[v]="Relationships";v++;
vx[v]="sub34ax2.htm"; vz[v]="Relationships Between Addition and Subtraction"; vy[v]="Relationships";v++;
vx[v]="sub34bx2.htm"; vz[v]="Relationships Between Subtraction and Addition"; vy[v]="Relationships";v++;
vx[v]="sub311x2.htm"; vz[v]="Subtraction of Fractions I"; vy[v]="Subtraction of Fractions";v++;
vx[v]="sub410x2.htm"; vz[v]="Subtraction of Fractions II"; vy[v]="Subtraction of Fractions";v++;
vx[v]="sub66bx2.htm"; vz[v]="Subtracting Like Fractions"; vy[v]="Subtraction of Fractions";v++;
vx[v]="sub66lx2.htm"; vz[v]="Subtracting Unlike Fractions"; vy[v]="Subtraction of Fractions";v++;
vx[v]="sub66ex2.htm"; vz[v]="Subtracting Mixed Numbers"; vy[v]="Subtraction of Fractions";v++;
vx[v]="sub65_x2.htm"; vz[v]="Subtraction Equation - One Digit Integers"; vy[v]="Subtraction of Positive and Negative Integers";v++;
vx[v]="sub65_x3.htm"; vz[v]="Subtraction Equation - Two Digit Integers"; vy[v]="Subtraction of Positive and Negative Integers";v++;
vx[v]="sub75_x2.htm"; vz[v]="Subtraction Equation - Three Digit Integers"; vy[v]="Subtraction of Positive and Negative Integers";v++;
vx[v]="sub85_x2.htm"; vz[v]="Subtraction Equation - Four Digit Integers"; vy[v]="Subtraction of Positive and Negative Integers";v++;
vx[v]="sub.htm"; vz[v]="Table of Contents";vy[v]="Table of Contents";v++; 
var vmax = vx.length + 1;