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18-19 ARMY AIR FORCES 26.11 26.11 _______ 26 11 261 1 15666 5222 ____________ 681.7321 1892 ____________ 681.9213 (6) Annex the 7 to the trial divisor and multiply by 7; 329 is obtained. This is too large. Next annex 6 and try it. This is satisfactory. Subtract the 276 from the 281. Place the 6 above the 81 group. Bring down the next group, 92. (7) Obtain a new trial divisor by doubling the 26. Divide the 52 into the 59; 1 is obtained. Annex the 1 above 92. Subtract and bring down the next group, 13. (8) Obtain a new trial divisor by doubling 261. Divide the 522 in the 711; 1 is obtained. Annex the 1 and multiply. Place the 1 above 13. Subtract. 1892 is obtained as the remainder. (9) Multiply 26.11 . 26.11 and add 1892; 681.9213 is obtained. i. Exercises: Find the square root of the following: (1) √ 625 (2) √ 289 17 Answer. (3) √ 125.44 (4) √ 167281 409 Answer. (5) √ 8.93 (6) √ .4387 .66234 Answer. (7) √ 983.431 (8) √ 10.6934 3.27008 Answer. 19. Miscellaneous exercises. - The following exercises are based on the topics in this section: (1) If 1 cubic foot of water weighs 62.5 pounds, what is the weight of 4.18 cubic feet of water? (2) How many cubic feet are there in 180 pounds of water? (See a above) 2.88 cu.ft Answer. (3) Change the following common fractions to decimal fractions: 3/8; 7/16; 51/75; 17/32. 32