[1÷(4.1-4.09)]x 0.49+0.51
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[1÷(4.1-4.09)]x0.49+0.51[1÷(4.1-4.09)]x0.49+0.51[1÷(4.1-4.09)]x0.49+0.51原式=(1÷0.01)×0.49+0.51=100×0.
[1÷(4.1-4.09)]x 0.49+0.51
[1÷(4.1-4.09)]x 0.49+0.51
[1÷(4.1-4.09)]x 0.49+0.51
原式=(1÷0.01)×0.49+0.51
=100×0.49+0.51
=49+0.51
=49.51
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[1÷(4.1-4.09)]x 0.49+0.51
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