1.2×2.5×0.8×2.4简便计算怎么算？
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1.2×2.5×0.8×2.4
=2.5×0.4×3×0.8×2.4
=3×2.4×0.8
=7.2×0.8
=5.76
=2.5×0.4×3×0.8×2.4
=3×2.4×0.8
=7.2×0.8
=5.76
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解原式＝1.2×2.5×0.8×2.4
=2.5×0.4×3×0.8×2.4
=3×2.4×0.8
=7.2×0.8
=5.76
=2.5×0.4×3×0.8×2.4
=3×2.4×0.8
=7.2×0.8
=5.76
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