3.14乘68加31.4乘3.2的简便计算?
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3.14乘68加31.4乘3.2的简便计算方法为:
=3.14x68+31.4x3.2
=3.14x68+[(31.4/10)x(3.2x10)]
=3.14x68+3.14x32
=3.14x(68+32)
=3.14x100
=314
=3.14x68+31.4x3.2
=3.14x68+[(31.4/10)x(3.2x10)]
=3.14x68+3.14x32
=3.14x(68+32)
=3.14x100
=314
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展开全部
3.14x68+31.4x3.2
=3.14x68+3.14x32
=3.14x(68+32)
=3.14x100
=314
=3.14x68+3.14x32
=3.14x(68+32)
=3.14x100
=314
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=3.14*68+3.14*32
=3.14*(68+32)
=3.14*100
=314
=3.14*(68+32)
=3.14*100
=314
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