Hidden fields
Books Books
" An integer is divisible by 3 if the sum of its digits is divisible by 3. An integer is divisible by 9 if the sum of its digits is divisible by 9. "
Practical Business Arithmetic - Page 99
by Helen J. Kiggen - 1922 - 404 pages
Full view - About this book

The A to Z of Mathematics: A Basic Guide

Thomas H. Sidebotham - Mathematics - 2003 - 488 pages
...the sum of its digits, which is 1+5 + 4 + 0 + 8= 18, is divisible by 6. Test 8. A number is divisible by 9 if the sum of its digits is divisible by 9. Example 8. The number 67,320 is divisible by 9, because the sum of its digits, which is 6 + 7 + 3 +...
Limited preview - About this book

Roadmap to 8th Grade Math, New York Edition

Karen Lurie - Mathematics - 2003 - 235 pages
...5. • An integer is divisible by 6 if it is divisible by both 2 and 3. • An integer is divisible by 9 if the sum of its digits is divisible by 9. • An integer is divisible by 10 if its units digit is 0. PRIME FACTORIZATION A whole number greater...
Limited preview - About this book

New National Framework Mathematics 9 Core Pupil's Book, Volume 9

M. J. Tipler - Juvenile Nonfiction - 2004 - 468 pages
...last digit is 0 or 5. by 6 if it is divisible by both 2 and 3. by 8 if half of it is divisible by 4. by 9 if the sum of its digits is divisible by 9. by 10 if the last digit is 0. For divisibility by large numbers we check for divisibility by factors. To check...
Limited preview - About this book

Developing Your Thinking Skills

Alan Horsfield, Elaine Horsfield - Juvenile Nonfiction - 2005 - 90 pages
...divisible by 8 if the number made by the last three digits is divisible by 8. A number is divisible by 9 if the sum of its digits is divisible by 9. A number is divisible by 10 if it ends in a 0. A number is divisible by 11 if the difference between...
Limited preview - About this book

CDS (Combined Defence Service Exam)

E.S.Ramasamy - 2006 - 838 pages
...these numbers the last three digit number is divisible by 8. 7. Divisibility by 9 A number is divisible by 9, if the sum of its digits is divisible by 9. Example 4527, 279 are divisible by 9, since in 4527, the sum of numbers (4 + 5+2 + 7 = 18) which is...
Limited preview - About this book

A New Arithmetic: Part I

A W Siddons, K S Snell, E H Lockwood - Mathematics - 1956 - 244 pages
...by 25 if its last two figures are 00, 25, 50 or 75. by 3 if the sum of its digits is divisible by 3. by 9 if the sum of its digits is divisible by 9. by 1 1 if the difference between the sum of one set of alternate digits and the sum of the other set of...
Limited preview - About this book

Math Skills Made Fun: Dazzling Math Line Designs; Dozens of Reproducible ...

Cindi Mitchell - Education - 1999 - 68 pages
...choice. Taking It Further: Circle the numbers that are divisible by 9. (Hint: A number is divisible by 9 if the sum of its digits is divisible by 9.) 324 5,364 4,592 147 6102 7055 b 1 -c I Name 10 Pattern Block Star DECIMALS Subtraction Solve the problems....
Limited preview - About this book




  1. My library
  2. Help
  3. Advanced Book Search
  4. Download EPUB
  5. Download PDF