Given exp. =` sqrt(1.30) + sqrt(1300) + sqrt(0.0130)` =  `sqrt(130/100) + sqrt(13 xx100) + sqrt(130/10000)`

                  =  `sqrt(130)/10 + sqrt(13) xx 10 + sqrt(130)/100` = `11.40/10  + 3.605 xx 10 + 11.40/100 `

                  = 1.14 + 36.05 + 0.114 =  37.304.

Given exp. =  `sqrt(18225/10^2) + sqrt(18225/10^4) + sqrt(18225/10^6)  + sqrt(18225/10^8)`

                 = `sqrt(28225)/10 + sqrt(18225)/20^2 + sqrt(18225)/10^3 + sqrt(18225)/10^4`

               =   `135/10 + 135/100 + 135/1000 + 135/10000`

             =    13.5 + 1.35 + 0.135 + 0.0135 = 14.9985

`sqrt(6760000)` = `sqrt(0.00000676 xx 10^12)` =  `sqrt(0.00000676) xx sqrt(10^12)`     =  .0026 x `10^6` =  2600

Given exp. = `sqrt(.0025) ` x `sqrt(2.25)` x` sqrt(.0001)`

                = `sqrt(25/10000)` x `sqrt(225/100)` x `sqrt(1/10000)`

                =  `5/100` x` 15/10` x `1/100` =   `75/100000` =  0.00075

Given exp. =`sqrt(0.01)` + `sqrt(0.81)` + `sqrt(1.21)` + `sqrt(0.0009)` 

                 = `sqrt(1/100)` + `sqrt(81/100)` + `sqrt(121/100)` + `sqrt(9/10000)`

                 =  `1/10 + 9/10 + 11/10 + 3/100` =  0.1 + 0.9 + 1.1 + 0.03 + 2.13 

`sqrt(0.01 + (0.0064))` = `sqrt(0.01 + sqrt(64/10000))` =  `sqrt(0.01 + 8/100)` =   `sqrt(0.01 + 0.08)` = `sqrt(0.09)`

                                    =  0.3

`1.2^2` x `sqrt(0.0225)`  = `1.5^2` x `sqrt(225/10000)` =   2.25 x `15/100` = 2.25x 0.15 =  0.3375

`sqrt(0.0004761)` =  `sqrt(4761/10^8)` =  `sqrt(4761/10^8)` = `sqrt(4761)/sqrt(10^8)`  =  `69/10^4`

                               = `69/10000` =   0.0069

`sqrt(0.000441)` = `sqrt(441/10^6)`  =  `sqrt(441)/sqrt(10^6)` = `21/10^3` = `21/1000` =  0.021

`sqrt(0.16)`    =   `sqrt(16/100)` =  `sqrt(16)/sqrt(100)` =  `4/10` = 0.4