简便计算 （1）3.14x26.4+31.4x7.35+0.314 （2）2.8x9.6x3.4/(1.4x3.2x1.7)
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（1）
3.14x26.4+31.4x7.35+0.314
=3.14x26.4+3.14x73.5+3.14x0.1
=3.14x(26.4+73.5+0.1)
=3.14x100
=314
(2)
2.8x9.6x3.4/(1.4x3.2x1.7)
=1.4x2x3.2x3x1.7x2/(1.4x3.2x1.7)
=2x3x2
=12
3.14x26.4+31.4x7.35+0.314
=3.14x26.4+3.14x73.5+3.14x0.1
=3.14x(26.4+73.5+0.1)
=3.14x100
=314
(2)
2.8x9.6x3.4/(1.4x3.2x1.7)
=1.4x2x3.2x3x1.7x2/(1.4x3.2x1.7)
=2x3x2
=12
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3.14x26.4+31.4x7.35+0.314
=31.4x2.64+31.4x7.35+3.14x0.1
=31.4x(2.64+7.35+0.1)
=314
2.8x9.6x3.4/(1.4x3.2x1.7)
=2.8/1.4x3.4/1.7x9.6/3.2
=2x2x3
=12
=31.4x2.64+31.4x7.35+3.14x0.1
=31.4x(2.64+7.35+0.1)
=314
2.8x9.6x3.4/(1.4x3.2x1.7)
=2.8/1.4x3.4/1.7x9.6/3.2
=2x2x3
=12
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（1）3.14x26.4+31.4x7.35+0.314 =3.14x(26.4+73.5+0.1)=3.14*100=314
（2）2.8x9.6x3.4/(1.4x3.2x1.7)=(2.8/1.4)*(9.6/3.2)*(3.4/1.7)=2*3*2=12
（2）2.8x9.6x3.4/(1.4x3.2x1.7)=(2.8/1.4)*(9.6/3.2)*(3.4/1.7)=2*3*2=12
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