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" ... any number divided by 9 will leave the same remainder as the sum of its digits divided by 9. "
Higher Arithmetic: Designed for the Use of High Schools, Academies, and ... - Σελίδα 17
των George Roberts Perkins - 1849 - 342 σελίδες
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Higher Arithmetic : Or, The Science and Application of Numbers: Combining ...

James Bates Thomson - 1860 - 440 σελίδες
...its multiple, or its product by any whole number. 15. Any number expressed by the decimal notation, divided by 9, will leave the same re/mainder, as the sum of its figures or digits divided by 9. Demonstration. — Take any number, as 6357 ; now separating it into...

The civil service arithmetic. [With] A key, Βιβλίο 1

Robert Johnston (F.R.G.S.) - 1863 - 254 σελίδες
...3, 4, and 6. NOTES—l. The method of proof (vi.) depends on a property of the number 9, viz.: — 'any number divided by 9 will leave the same remainder as the sum of its figures divided by 9.' 2. The explanation of the annexed example in multiplication will be found useful....

The Crittenden Commercial Arithmetic and Business Manual: Designed for the ...

John Groesbeck - 1867 - 226 σελίδες
...part of a thousand when its three right-hand figures may be thus divided. Any number divided by 3 or 9 will leave the same remainder as the sum of its digits divided by 3 or 9. The difference between any number and the sum of its digits is a multiple of 9....

The Crittenden Commercial Arithmetic and Business Manual: Designed for the ...

John Groesbeck - 1868 - 350 σελίδες
...part of a thousand when its three right-hand figures may be thus divided. Any number divided by 3 or 9 will leave the same remainder as» the sum of its digits divided by 3 or 9. The difference between any number and the sum of its digits is a multiple of 9....

The Crittendon Commercial Arithmetic and Business Manual: Designed for the ...

John Groesbeck - 1871 - 370 σελίδες
...part of a thousand when its three right-hand figures may be thus divided. Any number divided by 3 or 9 will leave the same remainder as the sum of its digits divided by 3 or 9. The difference between any number and the sum of its digits is a multiple of 9....

The Bryant and Stratton Business Arithmetic: A New Work, with Practical ...

Henry Beadman Bryant, Emerson Elbridge White, Corydon Giles Stowell - 1872 - 576 σελίδες
...NUMBERS. 188. 1. Nine. — The relation of the number 9 in the decima system of notation is such that any number divided by 9 will leave the same remainder as the sum of its digits divided by 9. The remainder in this case is called the excess of nines. Thus 75 -=-9 =8, Rem. 3, and...

The civil service arithmetic. [With] A key

Robert Johnston (F.R.G.S.) - 1872 - 342 σελίδες
...and 6. NOTES. — 1. The method of proof (vi.) depends on a property of the number 9, riz. : — ' any number divided by 9 will leave the same remainder as the sum of il» figures divided by 9.' 2. The explanation of the annexed example in multiplication will be found...

Crittenden Commercial Arithmetic ...

John Groesbeck - 1872 - 374 σελίδες
...part of a thousand when its three right-hand figures may be thus divided. Any number divided by 3 or 9 will leave the same remainder as the sum of its digits divided by 3 or 9. Th« difference between any number and the sum of its digits is a multiple of 9....

The Principles of Arithmetic ...

Joseph Ray - 1856 - 400 σελίδες
...consequently, the excess in this instance, is 3. All the methods of proof are founded on this PRINCIPLE.— Any number divided by 9 will leave the same remainder as the sum of its digits divided by 9 For example, take 3456. f3000=3(1000)=3x(999+l)=3x 999+3 400= 4(100)= 4X(99+1)= 4x99+4...

The civil service arithmetic. [With] A key. [With] A key, Τόμος 1

Robert Johnston (F.R.G.S.) - 1879 - 320 σελίδες
...3, 4, and 6. NOTES. — 1. The method of proof (vt) depends on a property of the number 9, viz.: — 'any number divided by 9 will leave the same remainder as the sum of its figures divided by 9.' ÍÍ. The explanation of the annexed example in multiplication will be found...




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