 | Samuel Mecutchen, George Mornton Sayre - Arithmetic - 1877 - 200 pages
...will consist of two 10 x 2 = 20)125 figures. As we found in Involution 225 = the square of the tens, product of the tens by the units, plus the square of the units in its root, we must find the square of the tens in the first left-hand period of the power. The greatest... | |
 | George E. Seymour - Arithmetic - 1880 - 332 pages
...+ 2 (20X5) + (5)! 487. Hence, The square of any number consisting of tens and units is composed of the square of the tens, plus twice the product of...the tens by the units, plus the square of the units. 488. From this general law it follows a. That if from the square of a number, the square of the tens... | |
 | H. Bryant - 1881 - 574 pages
...for every two decimal places used. 304. Observe further, that the square af any number separated into tens and units is equal to the square of the tens, plus twice the product of the tens by (he units, plus the square, of the units. (Art. 355, 1.) 36'J. These two principles concerning the... | |
 | James Bates Thomson - Arithmetic - 1882 - 416 pages
...200 + 25 = 625, or 25 s . Hence, the 62g _ 400 + 200 + 35 RULB.—The square of any 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. 1 VOLUTION. ORAL EXERCISES. 720. 1. What are the two equal factors of 9 ? 16 ? 25 "t 2. Name the two... | |
 | James Bates Thomson - Arithmetic - 1882 - 416 pages
...200 + 23 = 625, or 252. Hence, the 625 = 400 + 200 + 25 RULE. — The square of any number consisting of tens and units is equal to the square of the tens, plus tiuice the product of the tens by the units, plus the square of the units. 4. What is the square of... | |
 | Daniel W. Fish - Arithmetic - 1883 - 348 pages
...these partial products, is the square of 20 + 7 or 27. PRINCIPLE.— TJie 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. Using t and u respectively to denote the tens and units of a number, we have the FORMULA : I" + 2 x... | |
 | Emerson Elbridge White - Arithmetic - 1883 - 374 pages
...106.75? 74. 1.1449? 55. 390625? 65. 566.44? 75. 4.1209? PRINCIPLE AND RULE. ART. 361. Principle. — The square of a number, composed of tens and units,...the tens, plus twice the product of the tens by the unite, plus the square of the units. ART. 362. To extract the square root of a number: Rule. — 1.... | |
 | Daniel W. Fish - Arithmetic - 1883 - 364 pages
...is the square of 20 + 7 or 27. 729 = x 20 x7 + 72 PRINCIPLE. — The square of a number consisting of tens and units is equal to the square of the tens,...plus twice the product of the tens by the units, plus ths square of the units. Using t and u respectively to denote the tens and units of a number, we have... | |
 | Emerson Elbridge White - Arithmetic - 1883 - 368 pages
...greatest square in 33 is 25, and the square root of 25 is 5. Hence, 5 is the tens' term of the root. Since the square of a number composed of tens and units is equal to (I) the square of the tens, (2) plus twice the product of the tens by the units, (3) plus the square... | |
 | Indiana. State Board of Education - 1886 - 360 pages
...square of 25. By analyzing the foregoing we find that 625, when compared with its square root, contains the square of the tens, plus twice the product of...the tens by the units, plus the square of the units. Q 2 = 81 From the squares in the margin we may 99 3 = 9801 infer that the square of any number con125... | |
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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. 
