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练习十七,人教版小学数学第八册,=9.1,=8.1,=0.82,=0.5,=3.6,=2.3,1.,27.07,17.21,22.27,12.41,43.29,33.43,2.,=1.16(米),答：肖红跳过了1.16米。,=2.12(亿平方千米),答：海洋面积比陆地面积多2.12亿平方千米。,4.,6.39,7.44,53.1,0.82,0.8,19.92-9.92+14.410+14.424.4,85.7-15.3+4.870.4+4.875.2,40-3.6136.39,8.22,6.,7.,11.42-7.5+0.35=3.92+0.35=4.27(元),答：现在储蓄罐里有4.27元。,8.,你能把下面的分数改写成小数再计算吗？,0.1+0.40.5,0.17,0.03+0.50.53,0.09,9.,0,91600,84100,83580,69000,55330,42050,30520,17720,4520,88400,87080,4520,10.,
