205×205/102的简便运算

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205×205/102的简便运算205×205/102的简便运算205×205/102的简便运算205×205/102=205X(204+1)/102=205X(204/102+1/102)=205X

205×205/102的简便运算
205×205/102的简便运算

205×205/102的简便运算
205×205/102
=205 X (204 + 1)/102
=205 X (204/102 + 1/102)
=205 X(2 + 1/102)
=205 X 2 + 205/102
=410 + (204 + 1)/102
=410 +(204/102 + 1/102)
=410 + 2 +1/102
=412又1/102

用计算机

205×205/102
=205 X (204 + 1)/102
=205 X (204/102 + 1/102)
=205 X(2 + 1/102)
=205 X 2 + 205/102
=410 + (204 + 1)/102
=410 +(204/102 + 1/102)
=410 + 2 +1/102
=42024/102