
1.88+188×99.9简便运算?
2个回答
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1.88+188×99.9
=1.88+188×(100-0.1)
=1.88+188×100-188×0.1
=1.88+18800-18.8
=18801.88-18.8
=18783.08
=1.88+188×(100-0.1)
=1.88+188×100-188×0.1
=1.88+18800-18.8
=18801.88-18.8
=18783.08
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