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 Βιβλία Βιβλία 151 - 160 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 ## Intermediate Arithmetic, Μέρη 2-3

...20+6 /=tens u = units ?L±6 _ t+u 20* + (20x6) f+u 400 + 240 + 36 = 676 t2 + 2 x (txu) + u2 Hence, the square of a number composed of tens and units is equal to the square of the tens + twice the tens times the units + the square of the units. tz + 2 x (tx «) + itz may be written,... ## Milne's New York State Arithmetic, Βιβλίο 2

William James Milne - 1914
...6 tens in the root, squaring, and subtracting from 3844, we find there is a remainder of 244. Since the square of a number composed. of tens and units is equal to (the square of the tens) + (twice the product of the tens and the units) + (the square of the units), when the square of the... ## Wentworth-Smith Arithmetics: New Jersey Ed, Βιβλίο 3

George Wentworth - 1914
...more figures may be regarded as composed of tens and units. Therefore, The square of a number contains the square of the tens, plus twice the product of the tens and units, plus the square of the units. This is the most important principle in square root and should... ## Vocational Mathematics

William Henry Dooley - 1915 - 341 σελίδες
...the root, and shows what root is to be taken. Thus, .\/8 = 2 is read, the cube root of 8 is 2. Square Root The square of a number composed of tens and units...the tens by the units, plus the square of the units. tens? + 2 x tens x units + units? EXAMPLE. — What is the square root of 1225? 12'25(30 + 5 = 35 Separating... ## Vocational Mathematics

William Henry Dooley - 1915 - 341 σελίδες
...the root, and shows what root is to be taken. Thus, \/8 = 2 is read, the cube root of 8 is 2. Square Root The square of a number composed of tens and units...the tens by the units, plus the square of the units. tens' + 2 x tens x units + units' EXAMPLE. — What is the square root of 1225? 12'25(30 + 5 = 35 Separating... John Henry Moore - 1915 - 461 σελίδες
...22 = 4 402+2(40x2) + 22= 1764 238. In the preceding process it is shown that the square of a number is equal to the square of the tens plus twice the product of the tens ly the units, plus the square of the units. 239. I2 = 1, 102 = 100, 1002 = 10000, and so on ; 92 =... ## Essentials of Arithmetic, Τόμος 3

...more figures may be regarded as composed of tens and units. Therefore, The square of a number contains the square of the tens, plus twice the product of the tens and units, plus the square of the units. This is the most important principle in square root and should... ## Buker-Felter Arithmetics, Βιβλίο 3,Μέρη 1-2

Eva F. Buker - 1915
...of 20 X 5, 625 and the square of 5 conFIG. LII s.-25 9. The square of a number of two figures equals the square of the tens plus twice the product of the tens and the units plus the square of the units. 10. Regarding each number as composed of tens and units,... ## Essentials of Arithmetic: Grammar School Book

George Wentworth, David Eugene Smith - 1915 - 563 σελίδες
...more figures may be regarded as composed of tens and units. Therefore, The square of a number contains the square of the tens, plus twice the product of the tens and units, plus the square of the units. This is the most important principle in square root and should... ## Elementary Algebra

George William Myers, George Edward Atwood - 1916 - 338 σελίδες
...principle : Any square of three or four figures is equal to the square of the tens of its square root, plus twice the product of the tens by the units, plus the square of the units. For example, 572 = (50+7)2 = 502+2(50X7)+72 = 3249 54 76)70+4 a2 = 49 00 2a = 140 5 76 2a+6 = 144 5...