div class=ts-pagebuttonPage 1button div class=ts-image a href=https:reader040vdocumentinreader040viewer20220308105b1a0b177f8b9a37258d2eafhtml5page1jpg target=_blank amp-img class=ts-thumb alt=Page 1: webmathsunsweduauwebmathsunsweduau~jimproofsch3pdf28 Chapter 3 Example 2 Prove that a whole number is divisible by 9 if and only if the sum of its digits is divisible by src=https:reader040vdocumentinreader040viewer20220308105b1a0b177f8b9a37258d2eafhtml5thumbnails1jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 2button div class=ts-image a href=https:reader040vdocumentinreader040viewer20220308105b1a0b177f8b9a37258d2eafhtml5page2jpg target=_blank amp-img class=ts-thumb alt=Page 2: webmathsunsweduauwebmathsunsweduau~jimproofsch3pdf28 Chapter 3 Example 2 Prove that a whole number is divisible by 9 if and only if the sum of its digits is divisible by src=https:reader040vdocumentinreader040viewer20220308105b1a0b177f8b9a37258d2eafhtml5thumbnails2jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 3button div class=ts-image a href=https:reader040vdocumentinreader040viewer20220308105b1a0b177f8b9a37258d2eafhtml5page3jpg target=_blank amp-img class=ts-thumb alt=Page 3: webmathsunsweduauwebmathsunsweduau~jimproofsch3pdf28 Chapter 3 Example 2 Prove that a whole number is divisible by 9 if and only if the sum of its digits is divisible by src=https:reader040vdocumentinreader040viewer20220308105b1a0b177f8b9a37258d2eafhtml5thumbnails3jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 4button div class=ts-image a href=https:reader040vdocumentinreader040viewer20220308105b1a0b177f8b9a37258d2eafhtml5page4jpg target=_blank amp-img class=ts-thumb alt=Page 4: webmathsunsweduauwebmathsunsweduau~jimproofsch3pdf28 Chapter 3 Example 2 Prove that a whole number is divisible by 9 if and only if the sum of its digits is divisible by src=https:reader040vdocumentinreader040viewer20220308105b1a0b177f8b9a37258d2eafhtml5thumbnails4jpg width=142 height=106 layout=responsive amp-imga divdiv