Q : 1    Find the sum in each of the following : 

            (a)    \small 0.007 + 8.5 + 30.08

            (b)    \small 15 + 0.632 + 13.8

            (c)    \small 27.076 + 0.55 + 0.004

            (d)    \small 25.65 + 9.005 + 3.7

            (e)    \small 0.75 + 10.425 + 2

            (f)    \small 280.69 + 25.2 + 38

Answers (1)

As we know that the decimal addition is exactly like normal addition and we don't change the position of decimal in the number.

So,

(a)    \small 0.007 + 8.5 + 30.08

            0.007

            8.500

     +\:30.080


          38.587



 (b)    \small 15 + 0.632 + 13.8

         \small 15.000

           \small 0.632 

    \small +\:13.800


         \small 29.432


 (c)    \small 27.076 + 0.55 + 0.004

       27.076

          0.550

     +\:0.004


      27.630


 

 (d)    \small 25.65 + 9.005 + 3.7 

            25.650

               9.005

          +\:3.700


            38.355


 

 (e)    \small 0.75 + 10.425 + 2

      0.750

    10.425

 +\:2.000


    13.175


  (f)    \small 280.69 + 25.2 + 38

           280.69

             25.20

        +\:38.00


          343.89

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