用简便方法计算10.1-2.23和1.004-0.796
来源:学生作业学帮网 编辑:学帮网 时间:2024/05/31 13:43:48
用简便方法计算10.1-2.23和1.004-0.796
10.1-2.23
=10+0.1-2.23
=10-2.23+0.1
=7.77+0.1
=7.87
1.004-0.796
=(1+0.004)-(0.8-0.004)
=1+0.004-0.8+0.004
=1-0.8+0.004+0.004
=0.2+0.008
=0.208
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来源:学生作业学帮网 编辑:学帮网 时间:2024/05/31 13:43:48
用简便方法计算10.1-2.23和1.004-0.796
10.1-2.23
=10+0.1-2.23
=10-2.23+0.1
=7.77+0.1
=7.87
1.004-0.796
=(1+0.004)-(0.8-0.004)
=1+0.004-0.8+0.004
=1-0.8+0.004+0.004
=0.2+0.008
=0.208