<?xml version="1.0" encoding="us-ascii"?><InstanceReport xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"><Version>2.2.0.25</Version><hasSegments>false</hasSegments><hasScenarios>false</hasScenarios><ReportLongName>30803 - Disclosure - Acquisition (Tables)</ReportLongName><DisplayLabelColumn>true</DisplayLabelColumn><ShowElementNames>false</ShowElementNames><RoundingOption /><HasEmbeddedReports>false</HasEmbeddedReports><Columns><Column><Id>1</Id><IsAbstractGroupTitle>false</IsAbstractGroupTitle><LabelColumn>false</LabelColumn><CurrencyCode>USD</CurrencyCode><FootnoteIndexer /><hasSegments>false</hasSegments><hasScenarios>false</hasScenarios><MCU><KeyName>1/1/2010 - 12/31/2010
USD ($)

USD ($) / shares

</KeyName><CurrencySymbol>$</CurrencySymbol><contextRef><ContextID>Duration_1_1_2010_To_12_31_2010</ContextID><EntitySchema>http://www.sec.gov/CIK</EntitySchema><EntityValue>0000024741</EntityValue><PeriodDisplayName /><PeriodType>duration</PeriodType><PeriodStartDate>2010-01-01T00:00:00</PeriodStartDate><PeriodEndDate>2010-12-31T00:00:00</PeriodEndDate><Segments /><Scenarios /></contextRef><UPS><UnitProperty><UnitID>Unit12</UnitID><UnitType>Standard</UnitType><StandardMeasure><MeasureSchema>http://www.xbrl.org/2003/iso4217</MeasureSchema><MeasureValue>USD</MeasureValue><MeasureNamespace>iso4217</MeasureNamespace></StandardMeasure><Scale>0</Scale></UnitProperty><UnitProperty><UnitID>Unit14</UnitID><UnitType>Divide</UnitType><NumeratorMeasure><MeasureSchema>http://www.xbrl.org/2003/iso4217</MeasureSchema><MeasureValue>USD</MeasureValue><MeasureNamespace>iso4217</MeasureNamespace></NumeratorMeasure><DenominatorMeasure><MeasureSchema>http://www.xbrl.org/2003/instance</MeasureSchema><MeasureValue>shares</MeasureValue><MeasureNamespace>xbrli</MeasureNamespace></DenominatorMeasure><Scale>0</Scale></UnitProperty><UnitProperty><UnitID>Unit1</UnitID><UnitType>Standard</UnitType><StandardMeasure><MeasureSchema>http://www.xbrl.org/2003/instance</MeasureSchema><MeasureValue>shares</MeasureValue><MeasureNamespace>xbrli</MeasureNamespace></StandardMeasure><Scale>0</Scale></UnitProperty><UnitProperty><UnitID>Unit13</UnitID><UnitType>Standard</UnitType><StandardMeasure><MeasureSchema>http://www.xbrl.org/2003/instance</MeasureSchema><MeasureValue>pure</MeasureValue><MeasureNamespace>xbrli</MeasureNamespace></StandardMeasure><Scale>0</Scale></UnitProperty></UPS><CurrencyCode>USD</CurrencyCode><OriginalCurrencyCode>USD</OriginalCurrencyCode></MCU><CurrencySymbol>$</CurrencySymbol><Labels><Label Id="1" Label="12 Months Ended" /><Label Id="2" Label="Dec. 31, 2010" /></Labels></Column></Columns><Rows><Row><Id>2</Id><IsAbstractGroupTitle>true</IsAbstractGroupTitle><Level>0</Level><ElementName>glw_AcquisitionAbstract</ElementName><ElementPrefix>glw</ElementPrefix><IsBaseElement>false</IsBaseElement><BalanceType>na</BalanceType><PeriodType>duration</PeriodType><ShortDefinition>Acquisition [Abstract]</ShortDefinition><IsReportTitle>false</IsReportTitle><IsSegmentTitle>false</IsSegmentTitle><IsSubReportEnd>false</IsSubReportEnd><IsCalendarTitle>false</IsCalendarTitle><IsTuple>false</IsTuple><IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow><IsEquityAdjustmentRow>false</IsEquityAdjustmentRow><IsBeginningBalance>false</IsBeginningBalance><IsEndingBalance>false</IsEndingBalance><IsReverseSign>false</IsReverseSign><PreferredLabelRole /><FootnoteIndexer /><Cells><Cell><Id>1</Id><IsNumeric>false</IsNumeric><IsRatio>false</IsRatio><DisplayZeroAsNone>false</DisplayZeroAsNone><NumericAmount>0</NumericAmount><RoundedNumericAmount>0</RoundedNumericAmount><NonNumbericText /><NonNumericTextHeader /><FootnoteIndexer /><CurrencyCode /><CurrencySymbol /><IsIndependantCurrency>false</IsIndependantCurrency><ShowCurrencySymbol>false</ShowCurrencySymbol><DisplayDateInUSFormat>false</DisplayDateInUSFormat><hasSegments>false</hasSegments><hasScenarios>false</hasScenarios></Cell></Cells><OriginalInstanceReportColumns /><Unit>Other</Unit><ElementDataType>xbrli:stringItemType</ElementDataType><SimpleDataType>string</SimpleDataType><ElementDefenition>Acquisition [Abstract]</ElementDefenition><IsTotalLabel>false</IsTotalLabel><IsEPS>false</IsEPS><Label>Acquisition</Label></Row><Row><Id>3</Id><IsAbstractGroupTitle>false</IsAbstractGroupTitle><Level>0</Level><ElementName>us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTextBlock</ElementName><ElementPrefix>us-gaap</ElementPrefix><IsBaseElement>true</IsBaseElement><BalanceType>na</BalanceType><PeriodType>duration</PeriodType><ShortDefinition>No definition available.</ShortDefinition><IsReportTitle>false</IsReportTitle><IsSegmentTitle>false</IsSegmentTitle><IsSubReportEnd>false</IsSubReportEnd><IsCalendarTitle>false</IsCalendarTitle><IsTuple>false</IsTuple><IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow><IsEquityAdjustmentRow>false</IsEquityAdjustmentRow><IsBeginningBalance>false</IsBeginningBalance><IsEndingBalance>false</IsEndingBalance><IsReverseSign>false</IsReverseSign><PreferredLabelRole /><FootnoteIndexer /><Cells><Cell><Id>1</Id><IsNumeric>false</IsNumeric><IsRatio>false</IsRatio><DisplayZeroAsNone>false</DisplayZeroAsNone><NumericAmount>0</NumericAmount><RoundedNumericAmount>0</RoundedNumericAmount><NonNumbericText>&lt;div&gt;

&lt;table style="border-collapse: collapse; font-family: 'Calibri','sans-serif'; margin-left: 5.4pt; font-size: 11pt;" class="MsoNormalTable" border="0" cellspacing="0" cellpadding="0"&gt;
&lt;tr&gt;&lt;td style="border-bottom: medium none; border-left: medium none; padding-bottom: 0in; padding-left: 5.4pt; width: 488.35pt; padding-right: 5.4pt; border-top: windowtext 2.25pt solid; border-right: medium none; padding-top: 0in;" valign="bottom" width="651"&gt;

&lt;p style="margin: 0in 0in 0pt; font-family: 'Times New Roman','serif'; font-size: 12pt;" class="MsoNormal"&gt;&lt;font style="font-size: 10pt;" class="_mt"&gt;Total current assets&lt;/font&gt;&lt;/p&gt;&lt;/td&gt;
&lt;td style="border-bottom: medium none; border-left: medium none; padding-bottom: 0in; padding-left: 5.4pt; width: 15.8pt; padding-right: 5.4pt; border-top: windowtext 2.25pt solid; border-right: medium none; padding-top: 0in;" valign="bottom" width="21"&gt;

&lt;p style="margin: 0in 0in 0pt; font-family: 'Times New Roman','serif'; font-size: 12pt;" class="MsoNormal"&gt;&lt;font style="font-size: 10pt;" class="_mt"&gt;$&lt;/font&gt;&lt;/p&gt;&lt;/td&gt;
&lt;td style="border-bottom: medium none; border-left: medium none; padding-bottom: 0in; padding-left: 5.4pt; width: 26.85pt; padding-right: 5.4pt; border-top: windowtext 2.25pt solid; border-right: medium none; padding-top: 0in;" valign="bottom" width="36"&gt;

&lt;p style="text-align: right; margin: 0in 0in 0pt; font-family: 'Times New Roman','serif'; font-size: 12pt;" class="MsoNormal" align="right"&gt;&lt;font style="font-size: 10pt;" class="_mt"&gt;63&lt;/font&gt;&lt;/p&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td style="padding-bottom: 0in; padding-left: 5.4pt; width: 488.35pt; padding-right: 5.4pt; padding-top: 0in;" valign="bottom" width="651"&gt;

&lt;p style="margin: 0in 0in 0pt; font-family: 'Times New Roman','serif'; font-size: 12pt;" class="MsoNormal"&gt;&lt;font style="font-size: 10pt;" class="_mt"&gt;Other tangible assets&lt;/font&gt;&lt;/p&gt;&lt;/td&gt;
&lt;td style="padding-bottom: 0in; padding-left: 5.4pt; width: 15.8pt; padding-right: 5.4pt; padding-top: 0in;" valign="bottom" width="21"&gt;

&lt;p style="margin: 0in 0in 0pt; font-family: 'Times New Roman','serif'; font-size: 12pt;" class="MsoNormal"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td style="padding-bottom: 0in; padding-left: 5.4pt; width: 26.85pt; padding-right: 5.4pt; padding-top: 0in;" valign="bottom" width="36"&gt;

&lt;p style="text-align: right; margin: 0in 0in 0pt; font-family: 'Times New Roman','serif'; font-size: 12pt;" class="MsoNormal" align="right"&gt;&lt;font style="font-size: 10pt;" class="_mt"&gt;49&lt;/font&gt;&lt;/p&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td style="padding-bottom: 0in; padding-left: 5.4pt; width: 488.35pt; padding-right: 5.4pt; padding-top: 0in;" valign="bottom" width="651"&gt;

&lt;p style="margin: 0in 0in 0pt; font-family: 'Times New Roman','serif'; font-size: 12pt;" class="MsoNormal"&gt;&lt;font style="font-size: 10pt;" class="_mt"&gt;Other intangible assets&lt;/font&gt;&lt;/p&gt;&lt;/td&gt;
&lt;td style="padding-bottom: 0in; padding-left: 5.4pt; width: 15.8pt; padding-right: 5.4pt; padding-top: 0in;" valign="bottom" width="21"&gt;

&lt;p style="margin: 0in 0in 0pt; font-family: 'Times New Roman','serif'; font-size: 12pt;" class="MsoNormal"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td style="padding-bottom: 0in; padding-left: 5.4pt; width: 26.85pt; padding-right: 5.4pt; padding-top: 0in;" valign="bottom" width="36"&gt;

&lt;p style="text-align: right; margin: 0in 0in 0pt; font-family: 'Times New Roman','serif'; font-size: 12pt;" class="MsoNormal" align="right"&gt;&lt;font style="font-size: 10pt;" class="_mt"&gt;153&lt;/font&gt;&lt;/p&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td style="padding-bottom: 0in; padding-left: 5.4pt; width: 488.35pt; padding-right: 5.4pt; padding-top: 0in;" valign="bottom" width="651"&gt;

&lt;p style="margin: 0in 0in 0pt; font-family: 'Times New Roman','serif'; font-size: 12pt;" class="MsoNormal"&gt;&lt;font style="font-size: 10pt;" class="_mt"&gt;Current and non-current liabilities&lt;/font&gt;&lt;/p&gt;&lt;/td&gt;
&lt;td style="border-bottom: windowtext 1pt solid; border-left: medium none; padding-bottom: 0in; padding-left: 5.4pt; width: 15.8pt; padding-right: 5.4pt; border-top: medium none; border-right: medium none; padding-top: 0in;" valign="bottom" width="21"&gt;

&lt;p style="margin: 0in 0in 0pt; font-family: 'Times New Roman','serif'; font-size: 12pt;" class="MsoNormal"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td style="border-bottom: windowtext 1pt solid; border-left: medium none; padding-bottom: 0in; padding-left: 5.4pt; width: 26.85pt; padding-right: 5.4pt; border-top: medium none; border-right: medium none; padding-top: 0in;" valign="bottom" width="36"&gt;

&lt;p style="text-align: right; margin: 0in 0in 0pt; font-family: 'Times New Roman','serif'; font-size: 12pt;" class="MsoNormal" align="right"&gt;&lt;font style="font-size: 10pt;" class="_mt"&gt;(80)&lt;/font&gt;&lt;/p&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td style="padding-bottom: 0in; padding-left: 5.4pt; width: 488.35pt; padding-right: 5.4pt; padding-top: 0in;" valign="bottom" width="651"&gt;

&lt;p style="margin: 0in 0in 0pt; font-family: 'Times New Roman','serif'; font-size: 12pt;" class="MsoNormal"&gt;&lt;font style="font-size: 10pt;" class="_mt"&gt;Net tangible and intangible assets&lt;/font&gt;&lt;/p&gt;&lt;/td&gt;
&lt;td style="border-bottom: medium none; border-left: medium none; padding-bottom: 0in; padding-left: 5.4pt; width: 15.8pt; padding-right: 5.4pt; border-top: medium none; border-right: medium none; padding-top: 0in;" valign="bottom" width="21"&gt;

&lt;p style="margin: 0in 0in 0pt; font-family: 'Times New Roman','serif'; font-size: 12pt;" class="MsoNormal"&gt;&lt;font style="font-size: 10pt;" class="_mt"&gt;$&lt;/font&gt;&lt;/p&gt;&lt;/td&gt;
&lt;td style="border-bottom: medium none; border-left: medium none; padding-bottom: 0in; padding-left: 5.4pt; width: 26.85pt; padding-right: 5.4pt; border-top: medium none; border-right: medium none; padding-top: 0in;" valign="bottom" width="36"&gt;

&lt;p style="text-align: right; margin: 0in 0in 0pt; font-family: 'Times New Roman','serif'; font-size: 12pt;" class="MsoNormal" align="right"&gt;&lt;font style="font-size: 10pt;" class="_mt"&gt;185&lt;/font&gt;&lt;/p&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td style="border-bottom: windowtext 1pt solid; border-left: medium none; padding-bottom: 0in; padding-left: 5.4pt; width: 488.35pt; padding-right: 5.4pt; border-top: medium none; border-right: medium none; padding-top: 0in;" valign="bottom" width="651"&gt;

&lt;p style="margin: 0in 0in 0pt; font-family: 'Times New Roman','serif'; font-size: 12pt;" class="MsoNormal"&gt;&lt;font style="font-size: 10pt;" class="_mt"&gt;Purchase price, including cash received&lt;/font&gt;&lt;/p&gt;&lt;/td&gt;
&lt;td style="border-bottom: windowtext 1pt solid; border-left: medium none; padding-bottom: 0in; padding-left: 5.4pt; width: 15.8pt; padding-right: 5.4pt; border-top: medium none; border-right: medium none; padding-top: 0in;" valign="bottom" width="21"&gt;

&lt;p style="margin: 0in 0in 0pt; font-family: 'Times New Roman','serif'; font-size: 12pt;" class="MsoNormal"&gt;&amp;nbsp;&lt;/p&gt;&lt;/td&gt;
&lt;td style="border-bottom: windowtext 1pt solid; border-left: medium none; padding-bottom: 0in; padding-left: 5.4pt; width: 26.85pt; padding-right: 5.4pt; border-top: medium none; border-right: medium none; padding-top: 0in;" valign="bottom" width="36"&gt;

&lt;p style="text-align: right; margin: 0in 0in 0pt; font-family: 'Times New Roman','serif'; font-size: 12pt;" class="MsoNormal" align="right"&gt;&lt;font style="font-size: 10pt;" class="_mt"&gt;417&lt;/font&gt;&lt;/p&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td style="border-bottom: windowtext 2.25pt solid; border-left: medium none; padding-bottom: 0in; padding-left: 5.4pt; width: 488.35pt; padding-right: 5.4pt; border-top: medium none; border-right: medium none; padding-top: 0in;" valign="bottom" width="651"&gt;

&lt;p style="margin: 0in 0in 0pt; font-family: 'Times New Roman','serif'; font-size: 12pt;" class="MsoNormal"&gt;&lt;font style="font-size: 10pt;" class="_mt"&gt;Goodwill&amp;nbsp;&lt;/font&gt;&lt;font style="font-size: 8pt;" class="_mt"&gt;(1)&lt;/font&gt;&lt;/p&gt;&lt;/td&gt;
&lt;td style="border-bottom: windowtext 2.25pt solid; border-left: medium none; padding-bottom: 0in; padding-left: 5.4pt; width: 15.8pt; padding-right: 5.4pt; border-top: medium none; border-right: medium none; padding-top: 0in;" valign="bottom" width="21"&gt;

&lt;p style="margin: 0in 0in 0pt; font-family: 'Times New Roman','serif'; font-size: 12pt;" class="MsoNormal"&gt;&lt;font style="font-size: 10pt;" class="_mt"&gt;$&lt;/font&gt;&lt;/p&gt;&lt;/td&gt;
&lt;td style="border-bottom: windowtext 2.25pt solid; border-left: medium none; padding-bottom: 0in; padding-left: 5.4pt; width: 26.85pt; padding-right: 5.4pt; border-top: medium none; border-right: medium none; padding-top: 0in;" valign="bottom" width="36"&gt;

&lt;p style="text-align: right; margin: 0in 0in 0pt; font-family: 'Times New Roman','serif'; font-size: 12pt;" class="MsoNormal" align="right"&gt;&lt;font style="font-size: 10pt;" class="_mt"&gt;232&lt;/font&gt;&lt;/p&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;

&lt;p style="margin: 0in 0in 0pt; font-family: 'Times New Roman','serif'; font-size: 12pt;" class="MsoNormal"&gt;&lt;font style="font-size: 10pt;" class="_mt"&gt; &lt;/font&gt;&amp;nbsp;&lt;/p&gt;

&lt;p style="text-indent: -0.25in; margin: 0in 0in 0pt 0.25in; font-family: 'Times New Roman','serif'; font-size: 12pt;" class="MsoNormal"&gt;&lt;font style="font-size: 8pt;" class="_mt"&gt;(1)&amp;nbsp;&amp;nbsp; None of the goodwill recognized is deductible for U.S. income tax purposes.&amp;nbsp; The goodwill was allocated to the Life Sciences segment.&lt;/font&gt;&lt;/p&gt; &lt;/div&gt;</NonNumbericText><NonNumericTextHeader>Total current assets


$


63


Other tangible assets


&amp;nbsp;


49


Other intangible assets


&amp;nbsp;


153


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 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 141R
 -Paragraph 68

Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 141
 -Paragraph 52

Reference 3: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 141
 -Paragraph 51
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Reference 4: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 141R
 -Paragraph F4
 -Subparagraph e
 -Appendix F

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