Question

527×105-427×106+426（列递等式，要巧算，过程清楚的加分还有答案=，=

Answer 1

527×105-427×106+426
=527×105-427×105-427+426
=105×(527-427)-1
=105×100-1
=10500-1
=10499

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Answer 2

527*105-427*106+426
=(427+100)*105-427*(105+1)+426
=427*105+10500-427*105-427+426
=10500-1
=10499

Answer 3

527×105-427×106+426
=527×105-427×105-427+426
=105x(527-427)+(426-427)
=105x100-1
=10500-1
=10499

Answer 4

527×105-427×106+426
=527*105-427*105-427+426
=105*(527-427)-1
=10500-1
=10499