简便计算.0.84×1.2+8.4x0.88

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简便计算.0.84×1.2+8.4x0.88
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简便计算.0.84×1.2+8.4x0.88
简便计算.0.84×1.2+8.4x0.88

简便计算.0.84×1.2+8.4x0.88
=8.4x0.12+8.4x0.88
=8.4x(0.12+0.88)
=8.4x1
=8.4

0.84×1.2+8.4x0.88
=0.84×1.2+0.84x8.8
=0.84x(1.2+8.8)
=0.84x10
=8.4