4.2✖️1.35+2.1✖️3.5+6.2✖️6.9怎么计算
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4.2✖️1.35+2.1✖️3.5+6.2✖️6.9
=2.1✖️2.7+2.1✖️3.5+6.2✖️6.9
=2.1x（2.7+3.5）+6.2✖️6.9
=2.1x6.2+6.2✖️6.9
=（2.1+6.9）x6.2
=9x6.2
=55.8
希望能帮到你！
=2.1✖️2.7+2.1✖️3.5+6.2✖️6.9
=2.1x（2.7+3.5）+6.2✖️6.9
=2.1x6.2+6.2✖️6.9
=（2.1+6.9）x6.2
=9x6.2
=55.8
希望能帮到你！
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4.2×1.35+2.1×3.5+6.2×6.9
=2.1×(2×1.35)+2.1×3.5+6.2×6.9
=2.1×2.7+2.1×3.5+6.2×6.9
=2.1×(2.7+3.5)+6.2×6.9
=2.1×6.2+6.2×6.9
=6.2×(2.1+6.9)
=6.2×9
=55.8
=2.1×(2×1.35)+2.1×3.5+6.2×6.9
=2.1×2.7+2.1×3.5+6.2×6.9
=2.1×(2.7+3.5)+6.2×6.9
=2.1×6.2+6.2×6.9
=6.2×(2.1+6.9)
=6.2×9
=55.8
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