8.4X12.5x0.25怎么简算?
3个回答
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8.4X12.5x0.25
=2.1X4X12.5x0.25
=2.1X12.5x(0.25X4)
=2.1X12.5x1
=(2+0.1)X12.5
=25+1.25
=26.25
=2.1X4X12.5x0.25
=2.1X12.5x(0.25X4)
=2.1X12.5x1
=(2+0.1)X12.5
=25+1.25
=26.25
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展开全部
8.4X12.5X0.25
=(8+0.4)X12.5X0.25
=8X12.5X0.25+0.4X0.25X12.5
=100X0.25+0.1X12.5
=25+1.25
=26.25
=(8+0.4)X12.5X0.25
=8X12.5X0.25+0.4X0.25X12.5
=100X0.25+0.1X12.5
=25+1.25
=26.25
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