{"id":3989,"date":"2026-07-04T08:49:22","date_gmt":"2026-07-04T08:49:22","guid":{"rendered":"https:\/\/physicscatalyst.com\/testprep\/class-8-math\/algebra-play-class-8-maths\/"},"modified":"2026-07-04T08:49:22","modified_gmt":"2026-07-04T08:49:22","slug":"algebra-play-class-8-maths","status":"publish","type":"post","link":"https:\/\/physicscatalyst.com\/testprep\/class-8-math\/algebra-play-class-8-maths\/","title":{"rendered":"Algebra play class 8 Maths"},"content":{"rendered":"<script type=\"text\/javascript\" >\ndocument.addEventListener(\"DOMContentLoaded\", function(event) { \nif(!window.jQuery) alert(\"The important jQuery library is not properly loaded in your site. Your WordPress theme is probably missing the essential wp_head() call. You can switch to another theme and you will see that the plugin works fine and this notice disappears. If you are still not sure what to do you can contact us for help.\");\n});\n<\/script>  \n  \n<div  id=\"watupro_quiz\" class=\"quiz-area single-page-quiz\">\n<p id=\"submittingExam522\" style=\"display:none;text-align:center;\">Please wait...<br><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/physicscatalyst.com\/testprep\/wp-content\/plugins\/watupro\/img\/loading.gif\" width=\"16\" height=\"16\"><\/p>\n\n<div class=\"watupro-exam-description\" id=\"description-quiz-522\"><p><strong>General Instructions<\/strong><\/p>\n<ul>\n<li>Your test contains multiple-choice questions with only one answer-type question. There are a total of 10 questions<\/li>\n<li>This is a 20 min test. Please make sure you complete it in the stipulated time<\/li>\n<li>You can finish this test any time using the 'Submit' button.<\/li>\n<\/ul>\n<\/div>\n\n<form action=\"\" method=\"post\" class=\"quiz-form\" id=\"quiz-522\"  enctype=\"multipart\/form-data\" >\n<div class='watu-question ' id='question-1' style=';'><div id='questionWrap-1'  class='   watupro-question-id-8656'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>1. <\/span>Using digit 1, 3,7 , find the largest product<\/div><input type='hidden' name='question_id[]' id='qID_1' value='8656' class='watupro-question-id'\/><input type='hidden' id='answerType8656' class='answerTypeCnt1' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices8656'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8656[]' id='answer-id-34572' class='answer   answerof-8656  ' value='34572'   \/><label for='answer-id-34572' id='answer-label-34572' class=' answer'><span>31 x 7<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8656[]' id='answer-id-34573' class='answer   answerof-8656  ' value='34573'   \/><label for='answer-id-34573' id='answer-label-34573' class=' answer'><span>71 x 3<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8656[]' id='answer-id-34574' class='answer   answerof-8656  ' value='34574'   \/><label for='answer-id-34574' id='answer-label-34574' class=' answer'><span>13 x 7<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8656[]' id='answer-id-34575' class='answer   answerof-8656  ' value='34575'   \/><label for='answer-id-34575' id='answer-label-34575' class=' answer'><span>37 x 1<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-2' style=';'><div id='questionWrap-2'  class='   watupro-question-id-8657'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>2. <\/span>The top number of\u00a0 3 row pyramid using the bottom numbers 1,2 ,3 is<\/div><input type='hidden' name='question_id[]' id='qID_2' value='8657' class='watupro-question-id'\/><input type='hidden' id='answerType8657' class='answerTypeCnt2' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices8657'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8657[]' id='answer-id-34576' class='answer   answerof-8657  ' value='34576'   \/><label for='answer-id-34576' id='answer-label-34576' class=' answer'><span>8<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8657[]' id='answer-id-34577' class='answer   answerof-8657  ' value='34577'   \/><label for='answer-id-34577' id='answer-label-34577' class=' answer'><span>7<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8657[]' id='answer-id-34578' class='answer   answerof-8657  ' value='34578'   \/><label for='answer-id-34578' id='answer-label-34578' class=' answer'><span>6<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8657[]' id='answer-id-34579' class='answer   answerof-8657  ' value='34579'   \/><label for='answer-id-34579' id='answer-label-34579' class=' answer'><span>9<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-3' style=';'><div id='questionWrap-3'  class='   watupro-question-id-8658'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>3. <\/span>In a 2 x2 calender grid, if the top left number is 3 ,then sum of the grid is<\/div><input type='hidden' name='question_id[]' id='qID_3' value='8658' class='watupro-question-id'\/><input type='hidden' id='answerType8658' class='answerTypeCnt3' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices8658'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8658[]' id='answer-id-34580' class='answer   answerof-8658  ' value='34580'   \/><label for='answer-id-34580' id='answer-label-34580' class=' answer'><span>12<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8658[]' id='answer-id-34581' class='answer   answerof-8658  ' value='34581'   \/><label for='answer-id-34581' id='answer-label-34581' class=' answer'><span>16<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8658[]' id='answer-id-34582' class='answer   answerof-8658  ' value='34582'   \/><label for='answer-id-34582' id='answer-label-34582' class=' answer'><span>28<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8658[]' id='answer-id-34583' class='answer   answerof-8658  ' value='34583'   \/><label for='answer-id-34583' id='answer-label-34583' class=' answer'><span>30<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-4' style=';'><div id='questionWrap-4'  class='   watupro-question-id-8659'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>4. <\/span>In a calender grid, the number below the given number increases by<\/div><input type='hidden' name='question_id[]' id='qID_4' value='8659' class='watupro-question-id'\/><input type='hidden' id='answerType8659' class='answerTypeCnt4' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices8659'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8659[]' id='answer-id-34584' class='answer   answerof-8659  ' value='34584'   \/><label for='answer-id-34584' id='answer-label-34584' class=' answer'><span>1<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8659[]' id='answer-id-34585' class='answer   answerof-8659  ' value='34585'   \/><label for='answer-id-34585' id='answer-label-34585' class=' answer'><span>7<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8659[]' id='answer-id-34586' class='answer   answerof-8659  ' value='34586'   \/><label for='answer-id-34586' id='answer-label-34586' class=' answer'><span>6<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8659[]' id='answer-id-34587' class='answer   answerof-8659  ' value='34587'   \/><label for='answer-id-34587' id='answer-label-34587' class=' answer'><span>4<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-5' style=';'><div id='questionWrap-5'  class='   watupro-question-id-8660'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>5. <\/span>Find the top of the pyramid if the base has:<br \/>\r\n<br \/>\r\n1,2,3,4<\/div><input type='hidden' name='question_id[]' id='qID_5' value='8660' class='watupro-question-id'\/><input type='hidden' id='answerType8660' class='answerTypeCnt5' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices8660'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8660[]' id='answer-id-34588' class='answer   answerof-8660  ' value='34588'   \/><label for='answer-id-34588' id='answer-label-34588' class=' answer'><span>18<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8660[]' id='answer-id-34589' class='answer   answerof-8660  ' value='34589'   \/><label for='answer-id-34589' id='answer-label-34589' class=' answer'><span>19<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8660[]' id='answer-id-34590' class='answer   answerof-8660  ' value='34590'   \/><label for='answer-id-34590' id='answer-label-34590' class=' answer'><span>20<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8660[]' id='answer-id-34591' class='answer   answerof-8660  ' value='34591'   \/><label for='answer-id-34591' id='answer-label-34591' class=' answer'><span>21<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-6' style=';'><div id='questionWrap-6'  class='   watupro-question-id-8661'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>6. <\/span>Arnav thinks of a number x. he doubles it, adds 10, divides the result by 2, and finally subtracts the original number x. What is his final answer?<\/div><input type='hidden' name='question_id[]' id='qID_6' value='8661' class='watupro-question-id'\/><input type='hidden' id='answerType8661' class='answerTypeCnt6' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices8661'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8661[]' id='answer-id-34592' class='answer   answerof-8661  ' value='34592'   \/><label for='answer-id-34592' id='answer-label-34592' class=' answer'><span>2<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8661[]' id='answer-id-34593' class='answer   answerof-8661  ' value='34593'   \/><label for='answer-id-34593' id='answer-label-34593' class=' answer'><span>3<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8661[]' id='answer-id-34594' class='answer   answerof-8661  ' value='34594'   \/><label for='answer-id-34594' id='answer-label-34594' class=' answer'><span>4<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8661[]' id='answer-id-34595' class='answer   answerof-8661  ' value='34595'   \/><label for='answer-id-34595' id='answer-label-34595' class=' answer'><span>5<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-7' style=';'><div id='questionWrap-7'  class='   watupro-question-id-8662'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>7. <\/span>what is the\u00a0 general expression for the topmost number of a pyramid with 5 rows whose bottom row is a, b, c, d, and e.<\/div><input type='hidden' name='question_id[]' id='qID_7' value='8662' class='watupro-question-id'\/><input type='hidden' id='answerType8662' class='answerTypeCnt7' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices8662'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8662[]' id='answer-id-34596' class='answer   answerof-8662  ' value='34596'   \/><label for='answer-id-34596' id='answer-label-34596' class=' answer'><span>a + 4b + 6c + 4d + e<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8662[]' id='answer-id-34597' class='answer   answerof-8662  ' value='34597'   \/><label for='answer-id-34597' id='answer-label-34597' class=' answer'><span>a + 4b + 6c + 3d + e<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8662[]' id='answer-id-34598' class='answer   answerof-8662  ' value='34598'   \/><label for='answer-id-34598' id='answer-label-34598' class=' answer'><span>a + 4b + 6c + 2d + e<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8662[]' id='answer-id-34599' class='answer   answerof-8662  ' value='34599'   \/><label for='answer-id-34599' id='answer-label-34599' class=' answer'><span>a + 3b + 6c + 4d + e<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-8' style=';'><div id='questionWrap-8'  class='   watupro-question-id-8663'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>8. <\/span>Choose a two digit number and reverse it and then find the difference. The difference will always be divisible by<\/div><input type='hidden' name='question_id[]' id='qID_8' value='8663' class='watupro-question-id'\/><input type='hidden' id='answerType8663' class='answerTypeCnt8' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices8663'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8663[]' id='answer-id-34600' class='answer   answerof-8663  ' value='34600'   \/><label for='answer-id-34600' id='answer-label-34600' class=' answer'><span>9<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8663[]' id='answer-id-34601' class='answer   answerof-8663  ' value='34601'   \/><label for='answer-id-34601' id='answer-label-34601' class=' answer'><span>11<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8663[]' id='answer-id-34602' class='answer   answerof-8663  ' value='34602'   \/><label for='answer-id-34602' id='answer-label-34602' class=' answer'><span>8<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8663[]' id='answer-id-34603' class='answer   answerof-8663  ' value='34603'   \/><label for='answer-id-34603' id='answer-label-34603' class=' answer'><span>6<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-9' style=';'><div id='questionWrap-9'  class='   watupro-question-id-8664'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>9. <\/span>If a number pyramid has bottom cells a, 6, b and the top-most cell is 24, what is the value of a + b?<\/div><input type='hidden' name='question_id[]' id='qID_9' value='8664' class='watupro-question-id'\/><input type='hidden' id='answerType8664' class='answerTypeCnt9' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices8664'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8664[]' id='answer-id-34604' class='answer   answerof-8664  ' value='34604'   \/><label for='answer-id-34604' id='answer-label-34604' class=' answer'><span>12<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8664[]' id='answer-id-34605' class='answer   answerof-8664  ' value='34605'   \/><label for='answer-id-34605' id='answer-label-34605' class=' answer'><span>16<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8664[]' id='answer-id-34606' class='answer   answerof-8664  ' value='34606'   \/><label for='answer-id-34606' id='answer-label-34606' class=' answer'><span>10<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8664[]' id='answer-id-34607' class='answer   answerof-8664  ' value='34607'   \/><label for='answer-id-34607' id='answer-label-34607' class=' answer'><span>14<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-10' style=';'><div id='questionWrap-10'  class='   watupro-question-id-8665'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>10. <\/span>The sum of the two-digit number and its reverse is always divisble\u00a0 by<\/div><input type='hidden' name='question_id[]' id='qID_10' value='8665' class='watupro-question-id'\/><input type='hidden' id='answerType8665' class='answerTypeCnt10' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices8665'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8665[]' id='answer-id-34608' class='answer   answerof-8665  ' value='34608'   \/><label for='answer-id-34608' id='answer-label-34608' class=' answer'><span>9<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8665[]' id='answer-id-34609' class='answer   answerof-8665  ' value='34609'   \/><label for='answer-id-34609' id='answer-label-34609' class=' answer'><span>11<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8665[]' id='answer-id-34610' class='answer   answerof-8665  ' value='34610'   \/><label for='answer-id-34610' id='answer-label-34610' class=' answer'><span>12<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8665[]' id='answer-id-34611' class='answer   answerof-8665  ' value='34611'   \/><label for='answer-id-34611' id='answer-label-34611' class=' answer'><span>10<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div style='display:none' id='question-11'>\n\t<div 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