3 column
<table class="table table-bordered table-striped" style="width: 100%; table-layout: fixed;">
<thead>
<tr>
<th style="text-align: center;">(1) Fill the blanks:</th>
<th></th>
<th style="text-align: center;">(2) Fill the blanks:</th>
<th></th>
<th style="text-align: center;">(3) Fill the blanks:</th>
</tr>
</thead>
<tbody>
<tr>
<td>
<table class="table table-borderless table-sm" style="width: 100%;">
<tr>
<td><input type="text" style="width: 100%;"></td>
<td style="text-align: center;"> * </td>
<td>\( \text{§§V1(2,9,1)§§} \)</td>
<td>\( = \text{§§(§§V1(2,9,1)§§ * §§V2(2,9,1)§§)§§} \)</td>
</tr>
<tr>
<td>\( \text{§§V3(2,9,1)§§} \)</td>
<td style="text-align: center;"> : </td>
<td><input type="text" style="width: 100%;"></td>
<td>\( = \text{§§V4(2,9,1)§§} \)</td>
</tr>
<tr>
<td>\( \text{§§V5(2,9,1)§§} \)</td>
<td style="text-align: center;"> * </td>
<td>\( \text{§§V6(2,9,1)§§} \)</td>
<td><input type="text" style="width: 100%;"></td>
</tr>
<tr>
<td><input type="text" style="width: 100%;"></td>
<td style="text-align: center;"> : </td>
<td>\( \text{§§V7(2,9,1)§§} \)</td>
<td>\( = \text{§§V8(2,9,1)§§} \)</td>
</tr>
<tr>
<td>\( \text{§§V9(2,9,1)§§} \)</td>
<td style="text-align: center;"> * </td>
<td><input type="text" style="width: 100%;"></td>
<td>\( = \text{§§(§§V9(2,9,1)§§ * §§V10(2,9,1)§§)§§} \)</td>
</tr>
<tr>
<td>\( \text{§§V11(2,9,1)§§} \)</td>
<td style="text-align: center;"> : </td>
<td>\( \text{§§V12(2,9,1)§§} \)</td>
<td><input type="text" style="width: 100%;"></td>
</tr>
<tr>
<td><input type="text" style="width: 100%;"></td>
<td style="text-align: center;"> * </td>
<td>\( \text{§§V13(2,9,1)§§} \)</td>
<td>\( = \text{§§(§§V13(2,9,1)§§ * §§V14(2,9,1)§§)§§} \)</td>
</tr>
<tr>
<td>\( \text{§§V15(2,9,1)§§} \)</td>
<td style="text-align: center;"> : </td>
<td><input type="text" style="width: 100%;"></td>
<td>\( = \text{§§V16(2,9,1)§§} \)</td>
</tr>
<tr>
<td>\( \text{§§V17(2,9,1)§§} \)</td>
<td style="text-align: center;"> * </td>
<td>\( \text{§§V18(2,9,1)§§} \)</td>
<td><input type="text" style="width: 100%;"></td>
</tr>
</table>
</td>
<td></td>
<td>
<table class="table table-borderless table-sm" style="width: 100%;">
<tr>
<td><input type="text" style="width: 100%;"></td>
<td style="text-align: center;"> * </td>
<td>\( \text{§§V19(2,9,1)§§} \)</td>
<td>\( = \text{§§(§§V19(2,9,1)§§ * §§V20(2,9,1)§§)§§} \)</td>
</tr>
<tr>
<td>\( \text{§§V21(2,9,1)§§} \)</td>
<td style="text-align: center;"> : </td>
<td><input type="text" style="width: 100%;"></td>
<td>\( = \text{§§V22(2,9,1)§§} \)</td>
</tr>
<tr>
<td>\( \text{§§V23(2,9,1)§§} \)</td>
<td style="text-align: center;"> * </td>
<td>\( \text{§§V24(2,9,1)§§} \)</td>
<td><input type="text" style="width: 100%;"></td>
</tr>
<tr>
<td><input type="text" style="width: 100%;"></td>
<td style="text-align: center;"> : </td>
<td>\( \text{§§V25(2,9,1)§§} \)</td>
<td>\( = \text{§§V26(2,9,1)§§} \)</td>
</tr>
<tr>
<td>\( \text{§§V27(2,9,1)§§} \)</td>
<td style="text-align: center;"> * </td>
<td><input type="text" style="width: 100%;"></td>
<td>\( = \text{§§(§§V27(2,9,1)§§ * §§V28(2,9,1)§§)§§} \)</td>
</tr>
<tr>
<td>\( \text{§§V29(2,9,1)§§} \)</td>
<td style="text-align: center;"> : </td>
<td>\( \text{§§V30(2,9,1)§§} \)</td>
<td><input type="text" style="width: 100%;"></td>
</tr>
<tr>
<td><input type="text" style="width: 100%;"></td>
<td style="text-align: center;"> * </td>
<td>\( \text{§§V31(2,9,1)§§} \)</td>
<td>\( = \text{§§(§§V31(2,9,1)§§ * §§V32(2,9,1)§§)§§} \)</td>
</tr>
<tr>
<td>\( \text{§§V33(2,9,1)§§} \)</td>
<td style="text-align: center;"> : </td>
<td><input type="text" style="width: 100%;"></td>
<td>\( = \text{§§V34(2,9,1)§§} \)</td>
</tr>
<tr>
<td>\( \text{§§V35(2,9,1)§§} \)</td>
<td style="text-align: center;"> * </td>
<td>\( \text{§§V36(2,9,1)§§} \)</td>
<td><input type="text" style="width: 100%;"></td>
</tr>
</table>
</td>
<td></td>
<td>
<table class="table table-borderless table-sm" style="width: 100%;">
<tr>
<td><input type="text" style="width: 100%;"></td>
<td style="text-align: center;"> * </td>
<td>\( \text{§§V37(2,9,1)§§} \)</td>
<td>\( = \text{§§(§§V37(2,9,1)§§ * §§V38(2,9,1)§§)§§} \)</td>
</tr>
<tr>
<td>\( \text{§§V39(2,9,1)§§} \)</td>
<td style="text-align: center;"> : </td>
<td><input type="text" style="width: 100%;"></td>
<td>\( = \text{§§V40(2,9,1)§§} \)</td>
</tr>
<tr>
<td>\( \text{§§V41(2,9,1)§§} \)</td>
<td style="text-align: center;"> * </td>
<td>\( \text{§§V42(2,9,1)§§} \)</td>
<td><input type="text" style="width: 100%;"></td>
</tr>
<tr>
<td><input type="text" style="width: 100%;"></td>
<td style="text-align: center;"> : </td>
<td>\( \text{§§V43(2,9,1)§§} \)</td>
<td>\( = \text{§§V44(2,9,1)§§} \)</td>
</tr>
<tr>
<td>\( \text{§§V45(2,9,1)§§} \)</td>
<td style="text-align: center;"> * </td>
<td><input type="text" style="width: 100%;"></td>
<td>\( = \text{§§(§§V45(2,9,1)§§ * §§V46(2,9,1)§§)§§} \)</td>
</tr>
<tr>
<td>\( \text{§§V47(2,9,1)§§} \)</td>
<td style="text-align: center;"> : </td>
<td>\( \text{§§V48(2,9,1)§§} \)</td>
<td><input type="text" style="width: 100%;"></td>
</tr>
<tr>
<td><input type="text" style="width: 100%;"></td>
<td style="text-align: center;"> * </td>
<td>\( \text{§§V49(2,9,1)§§} \)</td>
<td>\( = \text{§§(§§V49(2,9,1)§§ * §§V50(2,9,1)§§)§§} \)</td>
</tr>
<tr>
<td>\( \text{§§V51(2,9,1)§§} \)</td>
<td style="text-align: center;"> : </td>
<td><input type="text" style="width: 100%;"></td>
<td>\( = \text{§§V52(2,9,1)§§} \)</td>
</tr>
<tr>
<td>\( \text{§§V53(2,9,1)§§} \)</td>
<td style="text-align: center;"> * </td>
<td>\( \text{§§V54(2,9,1)§§} \)</td>
<td><input type="text" style="width: 100%;"></td>
</tr>
</table>
</td>
</tr>
</tbody>
</table>