7.81×3.1+6.9×4.29+3.52×6.9的简便计算是什么?
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原式=7.81×3.1+6.9×(4.29+3.52)=7.81×3.1+6.9×7.81=7.81×(3.1+6.9)=7.81×10=78.1
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计算过程:
=7.81X3.1+6.9X(4.29+3.52)
=7.81X3.1+6.9x7.81
=7.81X(3.1+6.9)
=7.81x10
=78.1
=7.81X3.1+6.9X(4.29+3.52)
=7.81X3.1+6.9x7.81
=7.81X(3.1+6.9)
=7.81x10
=78.1
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7.81X3.1+6.9X4.29+3.52X6.9
=7.81X3.1+6.9X(4.29+3.52)
=7.81X3.1+6.9x7.81
=7.81X(3.1+6.9)
=7.81x10
=78.1
=7.81X3.1+6.9X(4.29+3.52)
=7.81X3.1+6.9x7.81
=7.81X(3.1+6.9)
=7.81x10
=78.1
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7.81X3.1+6.9X4.29+3.52x6.9
=7.81x3.1+6.9X(4.29+3.52)
=7.81x3.1+6.9x7.81
=7.81x(3.1+6.9)
=7.81Ⅹ10
=78.1
=7.81x3.1+6.9X(4.29+3.52)
=7.81x3.1+6.9x7.81
=7.81x(3.1+6.9)
=7.81Ⅹ10
=78.1
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7.81×3.1+6.9×4.29+3.52×6.9
=7.81×3.1+6.9x(4.29+3.52)
=7.81x3.1+6.9x7.81
=7.81x(3.1+6.9)
=7.81x10
=78.1
=7.81×3.1+6.9x(4.29+3.52)
=7.81x3.1+6.9x7.81
=7.81x(3.1+6.9)
=7.81x10
=78.1
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