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 Βιβλία Βιβλία 71 - 80 από 174 για The square of a number composed of tens and units is equal to the square of the tens,.... The square of a number composed of tens and units is equal to the square of the tens, plus twice the product of the tens by the units, plus the square of the units. tens? A Complete Arithmetic: Uniting Mental and Written Exercises in a Natural ... - Σελίδα 253
των Emerson Elbridge White - 1870 - 340 σελίδες
Πλήρης προβολή - Σχετικά με αυτό το βιβλίο ## Henderson & Hamlin's Lightning Calculator: Containing the Shortest, Simplest ...

John Alexander Henderson - 1872 - 50 σελίδες
...squaring any number consisting of tens and units. The square of such a number is equal to the Bquare of the tens, plus twice the product of the tens by the units, plus the square of the units. Thus 25 is composed of 2 tens or 20 and 5 units; and the 20 squared equals, 4:00 20 multiplied by 5... ## A Practical Arithmetic: Upon the Basis of the Works of Geo. R. Perkins

George Payn Quackenbos - 1872 - 336 σελίδες
...2 (20 x 5) + 5* ==25 squared = 625 Hence, The square of a number composed of tens and units, equals the square of the tens, plus twice the product of the tens and units, plus the square of the units. 502. Now reverse the process. Find the sq. root of 625. According... ## An Elementary Algebra

Daniel Barnard Hagar - 1873 - 263 σελίδες
...is ioOOO, etc. 2. The square of any number expressed by more than one order of figures consists of the square of the tens, plus twice the product of...the tens by the units, plus the square of the units. For any number expressed by more than one order of figures may be regarded as an algebraic polynomial,... ## A Treatise on Algebra

Elias Loomis - 1873 - 360 σελίδες
...841 " 800+40+1. If, then, 841 is the square of a number composed of tens and units, it must contain the square of the tens, plus twice the product of...the tens by the units, plus the square of the units. But these three terms are blended together in 841, and hence arises the peculiar difficulty in determining... ## School Arithmetic: Analytical and Practical

Charles Davies - 1874 - 336 σελίδες
...times, we have 3 * G+3-, and the sum is 32+2(3 x 6)+62 : thatis' 3« + 2(3x6)+6 The square of a number is equal to the square of the tens, plus twice the product of the lens by the units, plus the square of the units. The same may be shown by the figure : Let the line... ## Manual of Algebra

William Guy Peck - 1875 - 331 σελίδες
...root, and y the units; then will that is, the number is equal to the square of the tens in its root, plus twice the product of the tens by the units, plus the square of the units. We first find the tens of the root. Since the square of tens can contain no significant figure less... ## Manual of Algebra

William Guy Peck - 1875 - 331 σελίδες
...point. If we subtract the square of the tens from the given number, the remainder will be equal to twice the product of the tens by the units, plus the square of the units. Consequently, if we divide the remainder by twice the tens, the quotient will give the units, or a... ## A Mental Arithmetic on the Inductive Plan ...

Benjamin Greenleaf - 1875
...What is the square of 75 ? Of 85 ? 8. What is the square of 32 ? NOTE. — The square of any number is equal to the square of the tens, plus twice the product of the tens Ъу the units, plus the square of the units. Thus, 32 is 3 tens and 2 units ; 3 tens, or 30, squared... ## The Progressive Higher Arithmetic: For Schools, Academies, and Mercantile ...

Horatio Nelson Robinson - 1875 - 456 σελίδες
...is 3 times 50 multiplied by the square of 4, and the fourth is the cube of 4. Hence, III. The cube of a number composed of tens and units is equal to the cube of the tens, plus three times the square of the tens multiplied by the units, plus three times... ## The New American Arithmetic, Μέρος 3

...= 25 = the square of the units. 225 This analysis indicates that the square of a number consisting of tens and units is equal to the square of the tens,...the tens by the units, plus the square of the units. To . prove the accuracy of the proposition, let the tens of a number be denoted by a, and the units...