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vx[v]="est27ax2.htm"; vz[v]="Rounding"; vy[v]="Rounding Numbers:";v++;

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vx[v]="est41ex2.htm"; vz[v]="Rounding to the Nearest Hundred Thousand"; vy[v]="Rounding Numbers:";v++;

vx[v]="est44bx2.htm"; vz[v]="Rounding to the Nearest Hundredth"; vy[v]="Rounding Decimals To:";v++;

vx[v]="est44cx2.htm"; vz[v]="Rounding to the Nearest Tenth"; vy[v]="Rounding Decimals To:";v++;

vx[v]="est-dec-round.htm"; vz[v]="Rounding Decimals"; vy[v]="Rounding Decimals";v++;

vx[v]="est73ax2.htm"; vz[v]="Front End Estimation - Sums"; vy[v]="Estimating";v++;

vx[v]="est73ax3.htm"; vz[v]="Front End Estimation - Differences"; vy[v]="Estimating";v++;

vx[v]="est27bx2.htm"; vz[v]="Estimating Sums I "; vy[v]="Estimating";v++;

vx[v]="est46ax2.htm"; vz[v]="Estimating Sums II"; vy[v]="Estimating";v++;

vx[v]="est-dec-sum.htm"; vz[v]="Estimate Sum of Decimals"; vy[v]="Estimating";v++;

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vx[v]="est-dec-diff.htm"; vz[v]="Estimate Decimal Difference"; vy[v]="Estimating";v++;

vx[v]="est38ex2.htm"; vz[v]="Subtraction Using Estimation"; vy[v]="Estimating";v++;

vx[v]="est.htm"; vz[v]="Table of Contents";vy[v]="Table of Contents";v++; 

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