{"id":28999,"date":"2022-01-31T19:36:44","date_gmt":"2022-01-31T14:06:44","guid":{"rendered":"https:\/\/infinitylearn.com\/surge\/?p=28999"},"modified":"2022-02-25T00:03:31","modified_gmt":"2022-02-24T18:33:31","slug":"exponents-and-powers-class-7-extra-questions-maths-chapter-13","status":"publish","type":"post","link":"https:\/\/infinitylearn.com\/surge\/study-material\/cbse-notes\/class-7\/maths\/exponents-and-powers-extra-questions-maths-chapter-13\/","title":{"rendered":"Exponents and Powers Class 7 Extra Questions Maths Chapter 13"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_37 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" style=\"display: none;\"><label for=\"item\" aria-label=\"Table of Content\"><span style=\"display: flex;align-items: center;width: 35px;height: 30px;justify-content: center;\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/label><input type=\"checkbox\" id=\"item\"><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' style='display:block'><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/infinitylearn.com\/surge\/study-material\/cbse-notes\/class-7\/maths\/exponents-and-powers-extra-questions-maths-chapter-13\/#Exponents_and_Powers_Class_7_Extra_Questions_Maths_Chapter_13\" title=\"Exponents and Powers Class 7 Extra Questions Maths Chapter 13\">Exponents and Powers Class 7 Extra Questions Maths Chapter 13<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/infinitylearn.com\/surge\/study-material\/cbse-notes\/class-7\/maths\/exponents-and-powers-extra-questions-maths-chapter-13\/#Exponents_and_Powers_Class_7_Extra_Questions_Very_Short_Answer_Type\" title=\"Exponents and Powers Class 7 Extra Questions Very Short Answer Type\">Exponents and Powers Class 7 Extra Questions Very Short Answer Type<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/infinitylearn.com\/surge\/study-material\/cbse-notes\/class-7\/maths\/exponents-and-powers-extra-questions-maths-chapter-13\/#Exponents_and_Powers_Class_7_Extra_Questions_Short_Answer_Type\" title=\"Exponents and Powers Class 7 Extra Questions Short Answer Type\">Exponents and Powers Class 7 Extra Questions Short Answer Type<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/infinitylearn.com\/surge\/study-material\/cbse-notes\/class-7\/maths\/exponents-and-powers-extra-questions-maths-chapter-13\/#Exponents_and_Powers_Class_7_Extra_Questions_Higher_Order_Thinking_Skills_HOTS_Type\" title=\"Exponents and Powers Class 7 Extra Questions Higher Order Thinking Skills (HOTS) Type\">Exponents and Powers Class 7 Extra Questions Higher Order Thinking Skills (HOTS) Type<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Exponents_and_Powers_Class_7_Extra_Questions_Maths_Chapter_13\"><\/span>Exponents and Powers Class 7 Extra Questions Maths Chapter 13<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>Extra Questions for Class 7 Maths Chapter 13 Exponents and Powers<\/strong><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Exponents_and_Powers_Class_7_Extra_Questions_Very_Short_Answer_Type\"><\/span>Exponents and Powers Class 7 Extra Questions Very Short Answer Type<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Question 1.<br \/>\nExpress 343 as a power of 7.<br \/>\nSolution:<br \/>\nWe have 343 = 7 \u00d7 7 \u00d7 7 = 7<sup>3<\/sup><br \/>\nThus, 343 = 7<sup>3<\/sup><br \/>\n<img loading=\"lazy\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/48054230176_709a74c01f_o.png\" alt=\"Exponents and Powers Class 7 Extra Questions Maths Chapter 13 Q1\" width=\"75\" height=\"113\" \/><\/p>\n<p>Question 2.<br \/>\nWhich is greater 3<sup>2<\/sup> or 2<sup>3<\/sup>?<br \/>\nSolution:<br \/>\nWe have 3<sup>2<\/sup> = 3 \u00d7 3 = 9<br \/>\n2<sup>3<\/sup> = 2 \u00d7 2 \u00d7 2 = 8<br \/>\nSince 9 &gt; 8<br \/>\nThus, 3<sup>2<\/sup> &gt; 2<sup>3<\/sup><\/p>\n<p>Question 3.<br \/>\nExpress the following number as a powers of prime factors:<br \/>\n(i) 144<br \/>\n(ii) 225<br \/>\nSolution:<br \/>\n(i) We have<br \/>\n144 = 2 \u00d7 2 \u00d7 2 \u00d7 2 \u00d7 3 \u00d7 3 = 2<sup>4<\/sup> \u00d7 3<sup>2<\/sup><br \/>\nThus, 144 = 2<sup>4<\/sup> \u00d7 3<sup>2<\/sup><br \/>\n<img loading=\"lazy\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/48054322182_4ffbeda8b4_o.png\" alt=\"Exponents and Powers Class 7 Extra Questions Maths Chapter 13 Q3\" width=\"69\" height=\"186\" \/><br \/>\n(ii) We have<br \/>\n225 = 3 \u00d7 3 \u00d7 5 \u00d7 5 = 3<sup>2<\/sup> \u00d7 5<sup>2<\/sup><br \/>\nThus, 225 = 3<sup>2<\/sup> \u00d7 5<sup>2<\/sup><br \/>\n<img loading=\"lazy\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/48054230301_0bb583c408_o.png\" alt=\"Exponents and Powers Class 7 Extra Questions Maths Chapter 13 Q3.1\" width=\"74\" height=\"137\" \/><\/p>\n<p>Question 4.<br \/>\nFind the value of:<br \/>\n(i) (-1)<sup>1000<\/sup><br \/>\n(ii) (1)<sup>250<\/sup><br \/>\n(iii) (-1)<sup>121<\/sup><br \/>\n(iv) (10000)<sup>0<\/sup><br \/>\nSolution:<br \/>\n(i) (-1)<sup>1000<\/sup> = 1 [\u2235 (-1)<sup>even number<\/sup> = 1]\n(ii) (1)<sup>250<\/sup> = 1 [\u2235 (1)<sup>even number<\/sup> = 1]\n(iii) (-1)<sup>121<\/sup> = -1 [\u2235 (-1)<sup>odd number<\/sup> = -1]\n(iv) (10000)<sup>0<\/sup> = 1 [\u2235 a<sup>0<\/sup> = 1]\n<p>Question 5.<br \/>\nExpress the following in exponential form:<br \/>\n(i) 5 \u00d7 5 \u00d7 5 \u00d7 5 \u00d7 5<br \/>\n(ii) 4 \u00d7 4 \u00d7 4 \u00d7 5 \u00d7 5 \u00d7 5<br \/>\n(iii) (-1) \u00d7 (-1) \u00d7 (-1) \u00d7 (-1) \u00d7 (-1)<br \/>\n(iv) a \u00d7 a \u00d7 a \u00d7 b \u00d7 c \u00d7 c \u00d7 c \u00d7 d \u00d7 d<br \/>\nSolution:<br \/>\n(i) 5 \u00d7 5 \u00d7 5 \u00d7 5 \u00d7 5 = (5)<sup>5<\/sup><br \/>\n(ii) 4 \u00d7 4 \u00d7 4 \u00d7 5 \u00d7 5 \u00d7 5 = 4<sup>3<\/sup> \u00d7 5<sup>3<\/sup><br \/>\n(iii) (-1) \u00d7 (-1) \u00d7 (-1) \u00d7 (-1) \u00d7 (-1) = (-1)<sup>5<\/sup><br \/>\n(iv) a \u00d7 a \u00d7 a \u00d7 b \u00d7 c \u00d7 c \u00d7 c \u00d7 d \u00d7 d = a<sup>3<\/sup>b<sup>1<\/sup>c<sup>3<\/sup>d<sup>2<\/sup><\/p>\n<p>Question 6.<br \/>\nExpress each of the following as product of powers of their prime factors:<br \/>\n(i) 405<br \/>\n(ii) 504<br \/>\n(iii) 500<br \/>\nSolution:<br \/>\n(i) We have<br \/>\n405 = 3 \u00d7 3 \u00d7 3 \u00d7 3 \u00d7 5 = 3<sup>4<\/sup> \u00d7 5<sup>1<\/sup><br \/>\nThus, 405 = 3<sup>4<\/sup> \u00d7 5<sup>1<\/sup><br \/>\n<img loading=\"lazy\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/48054276708_0f9eb35cd6_o.png\" alt=\"Exponents and Powers Class 7 Extra Questions Maths Chapter 13 Q6\" width=\"80\" height=\"161\" \/><br \/>\n(ii) We have<br \/>\n504 = 2 \u00d7 2 \u00d7 2 \u00d7 3 \u00d7 3 \u00d7 7 = 2<sup>3<\/sup> \u00d7 3<sup>2<\/sup> \u00d7 7<sup>1<\/sup><br \/>\nThus, 504 = 2<sup>3<\/sup> \u00d7 3<sup>2<\/sup> \u00d7 7<sup>1<\/sup><br \/>\n<img loading=\"lazy\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/48054276753_590db5d820_o.png\" alt=\"Exponents and Powers Class 7 Extra Questions Maths Chapter 13 Q6.1\" width=\"74\" height=\"181\" \/><br \/>\n(iii) We have<br \/>\n500 = 2 \u00d7 2 \u00d7 5 \u00d7 5 \u00d7 5 = 2<sup>2<\/sup> \u00d7 5<sup>3<\/sup><br \/>\nThus, 500 = 2<sup>2<\/sup> \u00d7 5<sup>3<\/sup><br \/>\n<img loading=\"lazy\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/48054276803_b9c6c364e5_o.png\" alt=\"Exponents and Powers Class 7 Extra Questions Maths Chapter 13 Q6.2\" width=\"72\" height=\"153\" \/><\/p>\n<p>Question 7.<br \/>\nSimplify the following and write in exponential form:<br \/>\n(i) (5<sup>2<\/sup>)<sup>3<\/sup><br \/>\n(ii) (2<sup>3<\/sup>)<sup>3<\/sup><br \/>\n(iii) (a<sup>b<\/sup>)<sup>c<\/sup><br \/>\n(iv) [(5)<sup>2<\/sup>]<sup>2<\/sup><br \/>\nSolution:<br \/>\n(i) (5<sup>2<\/sup>)<sup>3<\/sup> = 5<sup>2\u00d73<\/sup> = 5<sup>6<\/sup><br \/>\n(ii) (2<sup>3<\/sup>)<sup>3<\/sup> = 2<sup>3\u00d73<\/sup> = 2<sup>9<\/sup><br \/>\n(iii) (a<sup>b<\/sup>)<sup>c<\/sup> = a<sup>b\u00d7c<\/sup> = a<sup>bc<\/sup><br \/>\n(iv) [(5)<sup>2<\/sup>]<sup>2<\/sup> = 5<sup>2\u00d72<\/sup> = 5<sup>4<\/sup><\/p>\n<p>Question 8.<br \/>\nVerify the following:<br \/>\n<img loading=\"lazy\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/48054276818_7c12f3a239_o.png\" alt=\"Exponents and Powers Class 7 Extra Questions Maths Chapter 13 Q8\" width=\"284\" height=\"53\" \/><br \/>\nSolution:<br \/>\n<img loading=\"lazy\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/48054322417_8db70179d7_o.png\" alt=\"Exponents and Powers Class 7 Extra Questions Maths Chapter 13 Q8.1\" width=\"371\" height=\"228\" \/><\/p>\n<p>Question 9.<br \/>\nSimplify:<br \/>\n<img loading=\"lazy\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/48054322402_aa09aaf913_o.png\" alt=\"Exponents and Powers Class 7 Extra Questions Maths Chapter 13 Q9\" width=\"280\" height=\"57\" \/><br \/>\nSolution:<br \/>\n<img loading=\"lazy\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/48054322422_900b5a462d_o.png\" alt=\"Exponents and Powers Class 7 Extra Questions Maths Chapter 13 Q9.1\" width=\"314\" height=\"123\" \/><\/p>\n<p>Question 10.<br \/>\nSimplify and write in exponential form:<br \/>\n<img loading=\"lazy\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/48054230591_2930183384_o.png\" alt=\"Exponents and Powers Class 7 Extra Questions Maths Chapter 13 Q10\" width=\"238\" height=\"60\" \/><br \/>\nSolution:<br \/>\n<img loading=\"lazy\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/48054276888_9e5a85072b_o.png\" alt=\"Exponents and Powers Class 7 Extra Questions Maths Chapter 13 Q10.1\" width=\"374\" height=\"104\" \/><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Exponents_and_Powers_Class_7_Extra_Questions_Short_Answer_Type\"><\/span>Exponents and Powers Class 7 Extra Questions Short Answer Type<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Question 11.<br \/>\nExpress each of the following as a product of prime factors is the exponential form:<br \/>\n(i) 729 \u00d7 125<br \/>\n(ii) 384 \u00d7 147<br \/>\nSolution:<br \/>\n(i) 729 \u00d7 125 = 3 \u00d7 3 \u00d7 3 \u00d7 3 \u00d7 3 \u00d7 3 \u00d7 5 \u00d7 5 \u00d7 5 = 3<sup>6<\/sup> \u00d7 5<sup>3<\/sup><br \/>\nThus, 729 \u00d7 125 = 3<sup>6<\/sup> \u00d7 5<sup>3<\/sup><br \/>\n<img loading=\"lazy\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/48054230151_f2353c852a_o.png\" alt=\"Exponents and Powers Class 7 Extra Questions Maths Chapter 13 Q11\" width=\"172\" height=\"183\" \/><br \/>\n(ii) 384 \u00d7 147 = 2 \u00d7 2 \u00d7 2 \u00d7 2 \u00d7 2 \u00d7 2 \u00d7 2 \u00d7 3 \u00d7 3 \u00d7 7 \u00d7 7 = 2<sup>7<\/sup> \u00d7 3<sup>2<\/sup> \u00d7 7<sup>2<\/sup><br \/>\nThus, 384 \u00d7 147 = 2<sup>7<\/sup> \u00d7 3<sup>2<\/sup> \u00d7 7<sup>2<\/sup><br \/>\n<img loading=\"lazy\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/48054276953_671a84c8d8_o.png\" alt=\"Exponents and Powers Class 7 Extra Questions Maths Chapter 13 Q11.1\" width=\"185\" height=\"229\" \/><\/p>\n<p>Question 12.<br \/>\nSimplify the following:<br \/>\n(i) 10<sup>3<\/sup> \u00d7 9<sup>0<\/sup> + 3<sup>3<\/sup> \u00d7 2 + 7<sup>0<\/sup><br \/>\n(ii) 6<sup>3<\/sup> \u00d7 7<sup>0<\/sup> + (-3)<sup>4<\/sup> \u2013 9<sup>0<\/sup><br \/>\nSolution:<br \/>\n(i) 10<sup>3<\/sup> \u00d7 9<sup>0<\/sup> + 3<sup>3<\/sup> \u00d7 2 + 7<sup>0<\/sup><br \/>\n= 1000 + 54 + 1<br \/>\n= 1055<br \/>\n(ii) 6<sup>3<\/sup> \u00d7 7<sup>0<\/sup> + (-3)<sup>4<\/sup> \u2013 9<sup>0<\/sup><br \/>\n= 216 \u00d7 1 + 81 \u2013 1<br \/>\n= 216 + 80<br \/>\n= 296<\/p>\n<p>Question 13.<br \/>\nWrite the following in expanded form:<br \/>\n(i) 70,824<br \/>\n(ii) 1,69,835<br \/>\nSolution:<br \/>\n(i) 70,824<br \/>\n= 7 \u00d7 10000 + 0 \u00d7 1000 + 8 \u00d7 100 + 2 \u00d7 10 + 4 \u00d7 10<sup>0<\/sup><br \/>\n= 7 \u00d7 10<sup>4<\/sup> + 8 \u00d7 10<sup>2<\/sup> + 2 \u00d7 10<sup>1<\/sup> + 4 \u00d7 10<sup>0<\/sup><br \/>\n(ii) 1,69,835<br \/>\n= 1 \u00d7 100000 + 6 \u00d7 10000 + 9 \u00d7 1000 + 8 \u00d7 100 + 3 \u00d7 10 + 5 \u00d7 10<sup>0<\/sup><br \/>\n= 1 \u00d7 10<sup>5<\/sup> + 6 \u00d7 10<sup>4<\/sup> + 9 \u00d7 10<sup>3<\/sup> + 8 \u00d7 10<sup>2<\/sup> + 3 \u00d7 10<sup>1<\/sup> + 5 \u00d7 10<sup>0<\/sup><\/p>\n<p>Question 14.<br \/>\nFind the number from each of the expanded form:<br \/>\n(i) 7 \u00d7 10<sup>8<\/sup> + 3 \u00d7 10<sup>5<\/sup> + 7 \u00d7 10<sup>2<\/sup> + 6 \u00d7 10<sup>1<\/sup> + 9<br \/>\n(ii) 4 \u00d7 10<sup>7<\/sup> + 6 \u00d7 10<sup>3<\/sup> + 5<br \/>\nSolution:<br \/>\n(i) 7 \u00d7 10<sup>8<\/sup> + 3 \u00d7 10<sup>5<\/sup> + 7 \u00d7 10<sup>2<\/sup> + 6 \u00d7 10<sup>1<\/sup> + 9<br \/>\n= 7 \u00d7 100000000 + 3 \u00d7 100000 + 7 \u00d7 100 + 6 \u00d7 10 + 9<br \/>\n= 700000000 + 300000 + 700 + 60 + 9<br \/>\n= 700300769<br \/>\n(ii) 4 \u00d7 10<sup>7<\/sup> + 6 \u00d7 10<sup>3<\/sup> + 5<br \/>\n= 4 \u00d7 10000000 + 6 \u00d7 1000 + 5<br \/>\n= 40000000 + 6000 + 5<br \/>\n= 40006005<\/p>\n<p>Question 15.<br \/>\nFind the value of k in each of the following:<br \/>\n<img loading=\"lazy\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/48054276403_7e84606128_o.png\" alt=\"Exponents and Powers Class 7 Extra Questions Maths Chapter 13 Q15\" width=\"230\" height=\"111\" \/><br \/>\nSolution:<br \/>\n<img loading=\"lazy\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/48054230086_90472c3b72_o.png\" alt=\"Exponents and Powers Class 7 Extra Questions Maths Chapter 13 Q15.1\" width=\"364\" height=\"381\" \/><br \/>\n<img loading=\"lazy\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/48054230046_6aedc2ee66_o.png\" alt=\"Exponents and Powers Class 7 Extra Questions Maths Chapter 13 Q15.2\" width=\"372\" height=\"328\" \/><\/p>\n<p>Question 16.<br \/>\nFind the value of<br \/>\n(a) 3<sup>0<\/sup> \u00f7 4<sup>0<\/sup><br \/>\n(b) (8<sup>0<\/sup> \u2013 2<sup>0<\/sup>) \u00f7 (8<sup>0<\/sup> + 2<sup>0<\/sup>)<br \/>\n(c) (2<sup>0<\/sup> + 3<sup>0<\/sup> + 4<sup>0<\/sup>) \u2013 (4<sup>0<\/sup> \u2013 3<sup>0<\/sup> \u2013 2<sup>0<\/sup>)<br \/>\nSolution:<br \/>\n(a) We have 3<sup>0<\/sup> \u00f7 4<sup>0<\/sup> = 1 \u00f7 1 = 1 [\u2235 a<sup>0<\/sup> = 1]\n(6) (8<sup>0<\/sup> \u2013 2<sup>0<\/sup>) \u00f7 (8<sup>0<\/sup> + 2<sup>0<\/sup>) = (1 \u2013 1) \u00f7 (1 + 1) = 0 \u00f7 2 = 0<br \/>\n(c) (2<sup>0<\/sup> + 3<sup>0<\/sup> + 4<sup>0<\/sup>) \u2013 (4<sup>0<\/sup> \u2013 3<sup>0<\/sup> \u2013 2<sup>0<\/sup>)<br \/>\n= (1 + 1 + 1) \u2013 (1 \u2013 1 \u2013 1) [\u2235 a<sup>0<\/sup> = 1]\n= 3 \u2013 1<br \/>\n= 2<\/p>\n<p>Question 17.<br \/>\nExpress the following in standard form:<br \/>\n(i) 8,19,00,000<br \/>\n(ii) 5,94,00,00,00,000<br \/>\n(iii) 6892.25<br \/>\nSolution:<br \/>\n(i) 8,19,00,000 = 8.19 \u00d7 10<sup>7<\/sup><br \/>\n(ii) 5,94,00,00,00,000 = 5.94 \u00d7 10<sup>11<\/sup><br \/>\n(iii) 6892.25 = 6.89225 \u00d7 10<sup>3<\/sup><\/p>\n<p>Question 18.<br \/>\nEvaluate:<br \/>\n<img loading=\"lazy\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/48054229931_ef183933d1_o.png\" alt=\"Exponents and Powers Class 7 Extra Questions Maths Chapter 13 Q18\" width=\"289\" height=\"57\" \/><br \/>\nSolution:<br \/>\n<img loading=\"lazy\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/48054321932_d62a2fc524_o.png\" alt=\"Exponents and Powers Class 7 Extra Questions Maths Chapter 13 Q18.1\" width=\"371\" height=\"483\" \/><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Exponents_and_Powers_Class_7_Extra_Questions_Higher_Order_Thinking_Skills_HOTS_Type\"><\/span>Exponents and Powers Class 7 Extra Questions Higher Order Thinking Skills (HOTS) Type<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Question 19.<br \/>\nFind the value of x, if<br \/>\n<img loading=\"lazy\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/48054321702_53e8cd37c5_o.png\" alt=\"Exponents and Powers Class 7 Extra Questions Maths Chapter 13 Q19\" width=\"200\" height=\"64\" \/><br \/>\nSolution:<br \/>\n<img loading=\"lazy\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/48054229871_6f9f7d720f_o.png\" alt=\"Exponents and Powers Class 7 Extra Questions Maths Chapter 13 Q19.1\" width=\"255\" height=\"84\" \/><br \/>\n<img loading=\"lazy\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/48054229841_9e83442be6_o.png\" alt=\"Exponents and Powers Class 7 Extra Questions Maths Chapter 13 Q19.2\" width=\"258\" height=\"509\" \/><br \/>\n<img loading=\"lazy\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/48054229806_5f36b0c3c5_o.png\" alt=\"Exponents and Powers Class 7 Extra Questions Maths Chapter 13 Q19.3\" width=\"376\" height=\"176\" \/><\/p>\n<p>Question 20.<br \/>\n<img loading=\"lazy\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/48054321602_d5df9a7acb_o.png\" alt=\"Exponents and Powers Class 7 Extra Questions Maths Chapter 13 Q20\" width=\"337\" height=\"54\" \/><br \/>\nSolution:<br \/>\n<img loading=\"lazy\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2021\/12\/48054321647_9b1211a8ce_o.png\" alt=\"Exponents and Powers Class 7 Extra Questions Maths Chapter 13 Q20.1\" width=\"252\" height=\"280\" \/><\/p>\n<h4><\/h4>\n","protected":false},"excerpt":{"rendered":"<p>Exponents and Powers Class 7 Extra Questions Maths Chapter 13 Extra Questions for Class 7 Maths Chapter 13 Exponents and [&hellip;]<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_focuskw":"","_yoast_wpseo_title":"","_yoast_wpseo_metadesc":"Get Exponents and Powers Class 7 Extra Questions Maths Chapter 13 on Infinity Learn.","custom_permalink":"study-material\/cbse-notes\/class-7\/maths\/exponents-and-powers-extra-questions-maths-chapter-13\/"},"categories":[92,13,21],"tags":[],"table_tags":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v17.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Exponents and Powers Class 7 Extra Questions Maths Chapter 13 - Infinity Learn by Sri Chaitanya<\/title>\n<meta name=\"description\" content=\"Get Exponents and Powers Class 7 Extra Questions Maths Chapter 13 on Infinity Learn.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/infinitylearn.com\/surge\/study-material\/cbse-notes\/class-7\/maths\/exponents-and-powers-extra-questions-maths-chapter-13\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Exponents and Powers Class 7 Extra Questions Maths Chapter 13 - Infinity Learn by Sri Chaitanya\" \/>\n<meta property=\"og:description\" content=\"Get Exponents and Powers Class 7 Extra Questions Maths Chapter 13 on Infinity Learn.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/infinitylearn.com\/surge\/study-material\/cbse-notes\/class-7\/maths\/exponents-and-powers-extra-questions-maths-chapter-13\/\" \/>\n<meta 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