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    				| 1. | Find the square roots of 100 and 169 by the method of repeated subtraction. | 
| Answer» 1)100 100-1=99 99-3=96 96-5=91 91-7=84 84-9=75 75-11=64 64-13=51 51-15=36 36-17=19 19-19=0 There are total 10 numbers So, 10 is the square root of 100 2)169 169-1=168 168-3=165 165-5=160 160-7=153 153-9=144 144-11=133 133-13=120 120-15=105 105-17=88 88-19=69 69-21=48 48-23=25 25-25=0 There are total 13 numbers So, 13 is the square root of 169. | |