 | Edward Atkins - 1874 - 428 pages
...and is also divisible by 3. By 8, when the number formed by the last three figures is divisible by 8. By 9, when the sum of its digits is divisible by 9. By 10, when it ends in 0. By 11, when the sum of the digits in the odd places (that is, the sum of... | |
 | Edward Atkins - 1874 - 426 pages
...and is also divisible by 3. By 8, when the number formed by the last three figures is divisible by 8. By 9, when the sum of its digits is divisible by 9. By 10, when it ends in 0. By 11, when the sum of the digits in the odd places (that is, the sum of... | |
 | James Stewart Eaton - Arithmetic - 1875 - 370 pages
...What number is divisible by 2 ' By a?- 4? 5? 6? What is aaid of 7? What number b divisible by 8! (g) Any number is divisible by 9 when the sum of its digits is divisible by 9 ; thus, 7146 is divisible by 9 because the sum of its digits, 7 + 1 + 4+6=18, is divisible by 9. (h)... | |
 | 1875 - 648 pages
...millions and three ; one hundred and fifty-one millions, six thousand and ninety-eight. 2. Show that a number is divisible by 9, when the sum of its digits is divisible by 9. 3. A man walks 14 miles a day. How many steps does he take in a week (6 days), each step being 3 feet... | |
 | James Stewart Eaton - Arithmetic - 1876 - 366 pages
...expressed by the three right-hand figures ; thus, 8 will divide 816, .-. it will divide 175816. (g) Any number is divisible by 9 when the sum of its digits is divisible by 9 ; thus, 7146 is divisible by 9 because the sum of its digits, 7 -j-1 -f- 4-|- 6= 18, is divisible by... | |
 | Malcolm MacVicar - Arithmetic - 1876 - 412 pages
...Common Multiple of two or more numbers is found by using their greatest common divisor. 18. Prove that a number is divisible by 9 when the sum of its digits is divisible by 9. —^[[FRACTIONS PE OPOS ITIO NS. 224. PROP. I. — ^wy i/ifw^ regarded as a whole can be divided into... | |
 | Barnard Smith - 1876 - 168 pages
...of the first ship in carpenters' wages was £6000. What was that of the second? XC. 1. Shew that a number is divisible by 9, when the sum of its digits is divisible by 9. Multiply ninety.five millions six thousand and nineteen by 655 in two lines, and prove the correctness... | |
 | James S.. Eaton - 1877 - 342 pages
...expressed by the three right-hand figures ; thus, 8 will divide 816, .-. it will divide 175816. (g) Any number is divisible by 9 when the sum of its digits is divisible by 9 ; thus, 7146 is divisible by 9 because the sum of its digits, 7-)-l-|-4-(-6=18, is divisible by 9.... | |
 | Isaac Todhunter - Algebra - 1877 - 628 pages
...Again, suppose r = 10 and ^=615372. Here 2-7 + 3-5 + 1-6=-12 = -Z>; 446. It appears from Art. 444 that a number is divisible by 9 when the sum of its digits is divisible by 9 ; and that when any number is divided by 9, the remainder is the same as if the sum of the digits of... | |
 | William Guy Peck - Arithmetic - 1877 - 430 pages
...divisible by 5 when its terminal digit is either 0 or 5 : thus, 70 and 85 are divisible by 5. 4. A number is divisible by 9 when the sum of its digits is divisible by 9 : thus, 837 is divisible by 9. 6. A number is divisible by any factor of 100 when the number expressed... | |
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Any number is divisible by 9, when the sum of its digits is divisible by 9; 
