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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.


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