{"id":18104,"date":"2020-01-04T17:25:13","date_gmt":"2020-01-04T11:55:13","guid":{"rendered":"https:\/\/kseebsolutions.guru\/?p=18104"},"modified":"2021-07-02T15:31:12","modified_gmt":"2021-07-02T10:01:12","slug":"kseeb-solutions-for-class-5-maths-chapter-3-part-2","status":"publish","type":"post","link":"https:\/\/kseebsolutions.guru\/kseeb-solutions-for-class-5-maths-chapter-3-part-2\/","title":{"rendered":"KSEEB Solutions for Class 5 Maths Chapter 3 Mental Arithmetic"},"content":{"rendered":"

Students can Download Maths Chapter 3 Mental Arithmetic Questions and Answers, Summary, Notes Pdf, KSEEB Solutions for Class 5 Maths<\/a>\u00a0helps you to revise the complete Karnataka State Board Syllabus and score more marks in your examinations.<\/p>\n

Karnataka State Syllabus Class 5 Maths Chapter 3 Mental Arithmetic<\/h2>\n

KSEEB Class 5 Maths Mental Arithmetic Revision Exercise<\/h3>\n

I. Round off each of the following numbers to nearest thousands place:<\/span><\/p>\n

1. 7,547<\/p>\n

7,547 lie between 7000 and 8000
\nReplace by zero
\n\"KSEEB<\/p>\n

2. 3,469
\n3,469 lie between 2000 and 3000
\nReplace by zero
\n\"KSEEB<\/p>\n

\"KSEEB<\/p>\n

3. 15,238
\n15,038
\nReplace by zero
\n\"KSEEB<\/p>\n

4. 32,658
\n32,658
\nReplace by zero
\n\"KSEEB<\/p>\n

II. Round off each of the following numbers to nearest ten thousands place:<\/span><\/p>\n

1. 26,674
\n26,674
\nReplace to zero
\n\"KSEEB<\/p>\n

2. 32,464
\n32,464
\nReplace to zero
\n\"KSEEB<\/p>\n

3. 46,379
\n46,379
\nReplace to zero
\n\"KSEEB<\/p>\n

4. 53,668
\n53,668
\nReplace to zero
\n\"KSEEB<\/p>\n

III. Estimate sum of the following by rounding off to nearest thousands place:<\/span><\/p>\n

1. 42,125 + 35,637
\n42,125 is rounded off to nearest thousand – 42,000
\n35,637 is rounded off to nearest thousand – 36,000
\n\"KSEEB
\nEstimate sum is 78,000
\nVerification by actual addition – 42125
\n\"KSEEB<\/p>\n

\"KSEEB<\/p>\n

2. 54,837 + 41,354
\n54,837 is rounded off to nearest thousand – 55,000
\n41,354 is rounded offto nearest thousand – 41,000
\n\"KSEEB
\nEstimate sum is 96,000
\nVerification by actual addition
\n\"KSEEB<\/p>\n

3. 33,231 + 20,097
\n33,321 is rounded off to nearest thousand – 33,000
\n20,097 is rounded off to nearest thousand – 20,000
\n\"KSEEB
\nEstimate sum is 53,000
\nVerification by actual addition
\n\"KSEEB<\/p>\n

4. 47,463 + 41,541
\n47,463 is rounded off to nearest thousand – 47,000
\n41,541 is rounded off to nearest thousand – 42,000
\n\"KSEEB
\nEstimate sum is 89,000
\nVerification by actual addition
\n\"KSEEB<\/p>\n

IV. Estimate the sum of the following by rounding off to nearest ten thousands place:<\/span><\/p>\n

1. 56,256 + 24,872
\n56,256 is rounded off to nearest ten thousand – 55,000
\n24,872 is rounded off to nearest ten thousand – 25,000
\n\"KSEEB
\nEstimate sum is 80,000
\nVerification by actual addition
\n\"KSEEB<\/p>\n

\"KSEEB<\/p>\n

2. 47,671 + 28,745
\n47,671 is rounded off to nearest ten thousand – 50,000
\n28,745 is rounded off to nearest ten thousand – 30,000
\n\"KSEEB
\nEstimate sum is 80,000
\nVerification by actual addition
\n\"KSEEB<\/p>\n

3. 32,184 + 45,138
\n32,184 is rounded off to nearest ten thousand – 30,000
\n45,138 is rounded off to nearest ten thousand – 50,000
\n\"KSEEB
\nEstimate, sum is 80,000
\nVerification by actual addition
\n\"KSEEB<\/p>\n

4. 15,025 + 40,165
\n15,025 is rounded off to nearest ten thousand – 20,000
\n40,165 is rounded off to nearest ten thousand – 40,000
\n\"KSEEB
\nEstimate sum is 60,000
\n\"KSEEB<\/p>\n

V. Estimate the difference of the following by rounding off to nearest thousands place:<\/span><\/p>\n

1. 65,487 – 46,502
\n65,487 is rounded off to nearest ten thousand – 64,000
\n46,502 is rounded off to nearest ten thousand – 46,000
\n\"KSEEB
\nEstimate sum is 18,000
\nVerification by actual substruction
\n\"KSEEB<\/p>\n

\"KSEEB<\/p>\n

2. 45,630 – 32,148
\n45,630 is rounded off to nearest ten thousand – 44,000
\n32,148 is rounded off to nearest ten thousand – 30,000
\n\"KSEEB
\nEstimate sum is 14,000
\nVerification by actual substruction
\n\"KSEEB<\/p>\n

3. 57,146 – 25,472
\n57,146 is rounded off to nearest ten thousand – 56,000
\n25,472 is rounded off to nearest ten thousand – 24,000
\n\"KSEEB
\nEstimate sum is 32,000
\nVerification by actual substraction
\n\"KSEEB<\/p>\n

4. 60,046 – 15,247
\n60,046 is rounded off to nearest ten thousand – 60,000
\n15,247 is rounded off to nearest ten thousand – 15,000
\n\"KSEEB
\nEstimate sum is 45,000
\nVerification by actual substraction
\n\"KSEEB<\/p>\n

VI. Estimate the difference of thefolhming hy rounding off to nearest ten thousands place:<\/span><\/p>\n

1. 51,689 – 34,685
\n51,689 is rounded off to nearest ten thousand – 50,000
\n34,685 is rounded off to nearest ten thousand – 30,000
\n\"KSEEB
\nEstimate sum is 20,000
\nVerification by actual substraction
\n\"KSEEB<\/p>\n

2. 86,853 – 47,829
\n86,853 is rounded off to nearest ten thousand – 85,000
\n47,829 is rounded off to nearest ten thousand – 45,000
\n\"KSEEB
\nEstimate difference is 40,000
\nVerification by actual substraction
\n\"KSEEB<\/p>\n

\"KSEEB<\/p>\n

3. 80,808 – 55,055
\n80,808 is rounded off to nearest ten thousand – 80,000
\n55,055 is rounded off to nearest ten thousand – 50,000
\n\"KSEEB
\nEstimate difference is 30,000
\nVerification by actual substractiori
\n\"KSEEB<\/p>\n

4. 77,777 – 44,444
\n77,777 is rounded off to nearest ten thousand – 70,000
\n44,444 is rounded off to nearest ten thousand – 40,000
\n\"KSEEB
\nEstimate difference is 30,000
\nVerification by actual substraction
\n\"KSEEB<\/p>\n

VII. Estimate the product of each of the following hy rounding off to its highest place:<\/span><\/p>\n

1. 428 \u00d7 54
\n428 is rounded off to nearest hundred as 400
\n54 is rounded off to nearest ten as 50
\n\"KSEEB
\nEstimate product is 20,000
\n\"KSEEB<\/p>\n

2. 878 \u00d7 46
\n876 is rounded off to nearest hundred as 900
\n46 is rounded off to nearest ten as 50
\n\"KSEEB
\nVerification by actual multiplication<\/p>\n

Verification by actual multiplication
\n\"KSEEB<\/p>\n

3. 5,476 \u00d7 11
\n5,476 is rounded off to nearest hundred as 5000
\n11 is rounded off to nearest ten as 10
\n\"KSEEB
\nVerification by actual multiplication<\/p>\n

Verification by actual multiplication
\n\"KSEEB<\/p>\n

\"KSEEB<\/p>\n

4. 2,645 \u00d7 18
\n2,645 is rounded off to nearest hundred as 3000
\n18 is rounded off to nearest ten as 20
\n\"KSEEB
\nVerification by actual multiplication<\/p>\n

Verification by actual multiplication
\n\"KSEEB<\/p>\n

VIII. Estimate the quotient of each of the following hy rounding off to its highest place.<\/span><\/p>\n

1. 398 \u00f7 82
\n398 is rounded off to nearest hundred aS 400
\n82 is rounded off to nearest ten as \u00f7 80
\nEstimate quotient \\(\\frac{800}{40}\\) = 5<\/p>\n

2. 786 \u00f7 22
\n786 is rounded off to nearest hundred as 800
\n22 is rounded off to nearest ten as \u00f7 20
\nEstimate quotient \\(\\frac{800}{20}\\) = 40<\/p>\n

3. 3,265 \u00f7 58
\n3,265 is rounded off to nearest hundred as 3000
\n58 is rounded off to nearest ten as \u00f7 60
\nEstimate quotient \\(\\frac{3000}{60}\\) = 50<\/p>\n

4. 7,687 \u00f7 43
\n7,687 is rounded off to nearest hundred as 8000
\n43 is rounded off to nearest ten as \u00f7 40
\nEstimate quotient \\(\\frac{8000}{40}\\) = 200<\/p>\n

IX. Solve the following problems.<\/span><\/p>\n

Question 1.
\nA garment company stitched 16,783 shirts and 12,438 pants in a month. Estimate the total number of dresses stitched to the nearest ten thousands place.
\nAnswer:
\nA garment company stitched shirts – 16,783
\nA garment company stitched pants – 12,438.
\n(To the nearest ten thousand place) – 20,000
\n(To the nearest ten thousand place) – 10,000
\n\"KSEEB
\n\"KSEEB<\/p>\n

Question 2.
\nA news paper agent sells 36,721 papers in first month and 24,172 papers in sec\u00acond month. Estimate the decrease in sale of the newspaper in second month to the nearest ten thousands place.
\nAnswer:
\nIn first month a news paper agents sells – 36,721
\nIn Second month a news paper agents sells – 24,172
\n(To the nearest ten thousand place)
\nfirst month – 40,000
\nSecond month – 20,000
\n\"KSEEB
\nThe estimated substraction of sale of the newspaper 20,000<\/p>\n

\"KSEEB<\/p>\n

Question 3.
\nA train can cover 225 km in one hour. Estimate the distance covered in a day to the highest place.
\nAnswer:
\nA train can cover 225 Km in 1 hour
\nThe distance covered in a day = 24 hours
\n(To the highest place) 200
\n\"KSEEB<\/p>\n

Question 4.
\nA carpenter earned Rs. 18,634 during the month of November and Rs. 32,645 in December. Estimate how much more he earned in December to the nearest ten thousands place.
\nAnswer:
\nA carpet earned in november – 18,634
\nA carpet earned in december – 32,645
\n(To the nearest ten thousand place)
\n\"KSEEB<\/p>\n

\"KSEEB<\/p>\n","protected":false},"excerpt":{"rendered":"

Students can Download Maths Chapter 3 Mental Arithmetic Questions and Answers, Summary, Notes Pdf, KSEEB Solutions for Class 5 Maths\u00a0helps you to revise the complete Karnataka State Board Syllabus and score more marks in your examinations. Karnataka State Syllabus Class 5 Maths Chapter 3 Mental Arithmetic KSEEB Class 5 Maths Mental Arithmetic Revision Exercise I. …<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[86],"tags":[],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kseebsolutions.guru\/wp-json\/wp\/v2\/posts\/18104"}],"collection":[{"href":"https:\/\/kseebsolutions.guru\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kseebsolutions.guru\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kseebsolutions.guru\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kseebsolutions.guru\/wp-json\/wp\/v2\/comments?post=18104"}],"version-history":[{"count":0,"href":"https:\/\/kseebsolutions.guru\/wp-json\/wp\/v2\/posts\/18104\/revisions"}],"wp:attachment":[{"href":"https:\/\/kseebsolutions.guru\/wp-json\/wp\/v2\/media?parent=18104"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kseebsolutions.guru\/wp-json\/wp\/v2\/categories?post=18104"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kseebsolutions.guru\/wp-json\/wp\/v2\/tags?post=18104"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}