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" CCC, 300, etc. 3. When a letter is placed after one of greater value, the sum of their values is the number represented. Thus, VI represents 6; XV, 15; LX, 60; CXX, 120. "
The New Normal Primary Arithemtic: Designed as an Introduction to a Thorough ... - Σελίδα 109
των Edward Brooks - 1878 - 111 σελίδες
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Practical Arithmetic, Embracing the Science of Numbers and the Art of ...

John Fair Stoddard - 1868 - 428 σελίδες
...number represented. Thus, IV denotes four, IX nine, XL forty. 3 If a letter be placed cA the right of one of greater value, the sum of their values is the number represented. Thus, VI denotes six, XI eleven, XV fifteen. NOTE. — A number expressed by principle 3d, instead of a single...

An Intermediate Arithmetic, Uniting Mental and Written Exercises in a ...

Emerson Elbridge White - 1870 - 204 σελίδες
...greater value, the less value is taken from the greater; thus: IV stands for 4; IX for 9 ; XC for 90. 3. When a letter is placed after one of greater value, the less value is added to the greater, thus : VI stands for 6 ; XI for 11 ; CX for 110. Art. 25. In the...

The Philosophy of Arithmetic as Developed from the Three Fundamental ...

Edward Brooks - 1876 - 588 σελίδες
...according to the following principles: — 1. Every time a letter is repeated its value is repeated. 2. When a letter is placed after one of greater value, the sum of their values is the number expressed. 3. When a letter is placed before one of a greater value, the difference of their values...

A Complete Arithmetic, Oral and Written

Malcolm MacVicar - 1876 - 412 σελίδες
...expressed. Thus, IV denotes four ; IX, nine ; XL, forty. 3. When a letter is placed at the right of one of greater value, the sum of their values is the number expressed. Thus, VI denotes six ; XI, eleven; LX, sixty. 4. A dash placed over a letter multiplies...

An Intermediate Arithmetic: Uniting Mental and Written Exercises in a ...

Emerson Elbridge White - 1876 - 236 σελίδες
...greater value, the less value is taken from the greater; thus: IV stands for 4; IX for 9 ; XC for 90. 3. When a letter is placed after one of greater value, the less value is added to the greater; thus: VI stands for 6; XI for 11 ; CX for 110. Art. 25. In the...

The Complete Arithmetic: Combining Oral and Written Exercises in a Natural ...

Albert Newton Raub - 1877 - 348 σελίδες
...of the two values is the value expressed ; thus, X equals ten, L equals fifty, but XL equals forty. 3. When a letter is placed after one of greater value, the sum of the two values is the value expressed ; as, LX equals sixty. 4. A dash or line drawn over a letter...

The New American Arithmetic, Τόμος 2

Samuel Mecutchen - 1877 - 128 σελίδες
...«600. X = 10. XXX = 30. DCC = 700. Eepeating a letter repeats its value. Thus, II = 2. A letter being placed after one of greater value, the sum of their values is taken. Thus, VI = 6. A letter being placed before one of greater value, the difference of their values...

The Normal Union Arithmetic: Designed as the Primary Part of a ..., Μέρος 1

Edward Brooks - 1878 - 164 σελίδες
...10, 50, 100, 500, 1000. 2. Repeating a letter repeats its value. Thus, П represents 2; XX, 20; CCC, 300, etc. 3. When a letter is placed after one of...represented. Thus, VI represents 6; XV, 15; LX, 60; CXX, 120. 4. When a letter is placed before one of greater value, the difference of their values is the number...

Teachers' Manual of Elementary Arithmetic: Including Oral, Slate, and ...

Malcolm MacVicar - 1880 - 268 σελίδες
...denotes 10 less 1, or 9; XL denotes 50 less 10, or 40. 3. When a letter is placed next to the right of one of greater value, the sum of their values is the number expressed. Thus, VI denotes the sum of 5 and 1, or 6 ; XI denotes the sum of 10 and 1, or 11 ; LX denotes...

Methods in Written Arithmetic

John Williston Cook - 1883 - 200 σελίδες
...placed before one of greater value, the two express a number equal to the difference of their values. 3. When a letter is placed after one of greater value, the two express a number equal to the sum of their values. 5. Placing a dash over a letter multiplies its...




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