问题 计算题
脱式计算。(能简算的要写出简算过程)                                           
(1)0.16+14.95+5.84 (2)13.74+7.28-6.77  
(3)1.59+3.3-0.59+6.7(4)7.02-4.5+0.98
答案
(1)0.16+14.95+5.84 
        =(0.16+5.84)+14.95
        =6+14.95
        =20.95(2)13.74+7.28-6.77  
        =21.02-6.77
        =14.25  
(3)1.59+3.3-0.59+6.7
        =(1.59-0.59)+(3.3+6.7)
        =1+10
        =11(4)7.02-4.5+0.98
        =(7.02+0.98)-4.5

        =8-4.5

        =3.5

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