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vx[v]="pro.htm"; vz[v]="Table of Contents";vy[v]="Table of Contents";v++; 
vx[v]="pro34ax2.htm"; vz[v]="Inverse Relationship between Addition and Subtraction"; vy[v]="Properties";v++;
vx[v]="pro34bx2.htm"; vz[v]="Inverse Relationship between Subtraction and Addition"; vy[v]="Properties";v++;
vx[v]="pro34cx2.htm"; vz[v]="Inverse Relationship between Multiplication and Division"; vy[v]="Properties";v++;
vx[v]="pro34dx2.htm"; vz[v]="Inverse Relationship between Division and Multiplication"; vy[v]="Properties";v++;
vx[v]="pro73cx0.htm"; vz[v]="Order of Operations I"; vy[v]="Properties";v++;
vx[v]="pro73cx2.htm"; vz[v]="Order of Operations II"; vy[v]="Properties";v++;
vx[v]="pro74ax2.htm"; vz[v]="Properties of Addition"; vy[v]="Properties";v++;
vx[v]="pro74bx2.htm"; vz[v]="Properties of Multiplication"; vy[v]="Properties";v++;
//vx[v]="pro12ex1.htm"; vz[v]="Place Value Demonstration"; vy[v]="Properties";v++;
vx[v]="pro39_x2.htm"; vz[v]="Relationship of Addition to Multiplication"; vy[v]="Properties";v++;
vx[v]="pro41_x3.htm"; vz[v]="Relationship of Subtraction and Division"; vy[v]="Properties";v++;
vx[v]="pro42bx1.htm"; vz[v]="Relating Fractions To Decimals"; vy[v]="Properties";v++;
vx[v]="pro42cx1.htm"; vz[v]="Relating Decimals to Fractions"; vy[v]="Properties";v++;
vx[v]="pro61cx1.htm"; vz[v]="Relationship between Fractions and Percent"; vy[v]="Properties";v++;
vx[v]="pro61dx1.htm"; vz[v]="Relationship between Percents and Fractions"; vy[v]="Properties";v++;
vx[v]="pro61ex1.htm"; vz[v]="Relationship between Decimals and Percents"; vy[v]="Properties";v++;
vx[v]="pro61fx1.htm"; vz[v]="Relationship between Percents and Decimals"; vy[v]="Properties";v++;
vx[v]="pro61gx1.htm"; vz[v]="Relationship between Fractions and Decimals"; vy[v]="Properties";v++;
vx[v]="pro-pow-by-mult.htm"; vz[v]="Powers by Multiplication"; vy[v]="Properties";v++;
vx[v]="pro.htm"; vz[v]="Table of Contents";vy[v]="Table of Contents";v++; 
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