
54.7×1.29+5.47×87.1简便运算?
2个回答
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54.7×1.29+5.47×87.1
=54.7×1.29+54.7×0.1×87.1
=54.7×1.29+54.7×8.71
=54.7×(1.29+8.71)
=54.7×10
=547
=54.7×1.29+54.7×0.1×87.1
=54.7×1.29+54.7×8.71
=54.7×(1.29+8.71)
=54.7×10
=547
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