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If a letter is placed after one of greater value, its value is to be added to that of the greater. Thus, XI represents eleven, LX sixty, DC six hundred.
Fish's Arithmetic Number Two: Oral and Written, Upon the Inductive Method - Page 270
by Daniel W. Fish - 1883 - 352 pages

## Robinson's Progressive Practical Arithmetic: Containing the Theory of ...

Horatio Nelson Robinson - 1888 - 372 pages
...the greater. Thuss XI represents eleven, LX sixty, DC six hundred. . 3d. If a letter of any value be placed before one of greater value, its value is to be taken from that of the greater. Thus, IX represents nine, XL forty, CD four hundred. Define notation. Numeration. What systems of notation...

## Robinson's New Practical Arithmetic for Common Schools and Academies

Horatio Nelson Robinson - Arithmetic - 1892 - 428 pages
...is to be added to that of the greater. Thus, XI represents eleven, LX sixty, DC six hundred. 8 3. If a letter is placed before one of greater value, its...value is to be taken from that of the greater. Thus, IX represents nine, XL forty, CD four hundred. 4. If a letter is placed between two letters, each of...

## Robinson's New Practical Arithmetic for Common Schools and Academies

Horatio Nelson Robinson - Arithmetic - 1892 - 430 pages
...is to be added to that of the greater. Thus, XI represents eleven, LX sixty, DC six hundred. 3. If a letter is placed before one of greater value, its...value is to be taken from that of the greater. Thus, IX represents nine, XL forty, CD four hundred. 4. If a letter is placed between two letters, each of...

## Standard Arithmetic: Embracing a Complete Course for Schools and Academies

William James Milne - Arithmetic - 1892 - 440 pages
...represents one ; II, two ; III, three ; X, ten ; XX, twenty. 2. When a letter is placed before another of greater value, its value is to be taken from that of the greater. Thus, IV represents four; IX, nine; XIX, nineteen; XL, forty. 3. When a letter is placed after another of greater value,...

## Robinson's New Rudiments of Arithmetic

Horatio Nelson Robinson - Arithmetic - 1892 - 236 pages
...greater. Thus, XI represents eleven, LX sixty, DC six hundred. 3. When a letter is placed before another of greater value, its value is to be taken from that of the greater. Thus, IX represents nine, XL forty, CD four hundred. 4. When a letter is placed between two letters, each...

## Elements of Arithmetic: For Primary and Intermediate Classes in Public and ...

William James Milne - Arithmetic - 1893 - 250 pages
...twenty ; XXX, thirty ; CC, two hundred ; MM, two thousand. 2. When a letter is placed before another of greater value, its value is to be taken from that of the greater, Thus, I represents one, V, five, and X, ten. But IV represents four ; IX, nine ; XL, forty ; XC, ninety....

## The Indiana School Journal, Volume 42

Education - 1897 - 876 pages
...the greater. Thus, XI represents eleven, L,X sixty, DC, six hundred. III. If a letter of any value is placed before one of greater value, its value is to be taken from that of the greater. Thus, IX represents nine, XL forty, CD four hundred. IV. If a letter of any value is placed between two letters,...

## American Comprehensive Arithmetic

Middlesex Alfred Bailey - Arithmetic - 1897 - 332 pages
...placed after one of greater value, its value is to be added to XI, 11 ; LXXX, 80. that of the greater. When a letter is placed before one of greater value, its value is to be sub- IX, 9 ; CD, 400. tracted from that of the greater. When a letter is placed between two letters,...