350×1.61+21×16.1运用简便方法怎样计算?
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=35×10×1.61+21×16.1
=35×(10×1.61)+21×16.1
=35×16.1+21×16.1
=16.1×(35+21)
=16.1×(5×7+3×7)
=16.1×[7×(5+3)]
=16.1×7×8
=112.7×8
=901.6
=35×(10×1.61)+21×16.1
=35×16.1+21×16.1
=16.1×(35+21)
=16.1×(5×7+3×7)
=16.1×[7×(5+3)]
=16.1×7×8
=112.7×8
=901.6
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展开全部
350x1.61+21x16.1
=16.1x(35+21)
=(16+0.1)x56
=16x56+0.1x56
=896+5.6
=901.6
=16.1x(35+21)
=(16+0.1)x56
=16x56+0.1x56
=896+5.6
=901.6
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