(1)0.08 ×720×1.25 (2)5 .25×8.2+5.25×0.8+5 .25 (3)0 .5+7...

(1)0.08 ×720×1.25 (2)5 .25×8.2+5.25×0.8+5 .25 (3)0 .5+7 2÷1.44×0.4 (4)1.32×(0.9÷18)

(1)0.08×720×1.25
       =0.08×1.25×720
       =72
(2)5.25×8.2+5.25×0.8+5.25
  =5.25×(8.2+0.8+1)
  =52.5
(3)0.5+7.2÷1.44×0.4
       =0.5+2
       =2.5
(4)1.32×(0.9÷18)
  =1.32×0.05
  =0.066

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