13.56-7.82+2.18- 3.56怎么巧算
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13.56-7.82+2.18- 3.56
=13.56- 3.56-7.82+2.18
=10-7.82+2.18
=2.18+2.18
=4.36
=13.56- 3.56-7.82+2.18
=10-7.82+2.18
=2.18+2.18
=4.36
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=(13.56-3.56)-(7-2)-(0.82-0.18)
=10-5-0.64
=5-0.64
=4.36
=10-5-0.64
=5-0.64
=4.36
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2017-04-28
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=(13.56-3.56)-(7.82+2.18)+2.18+2.18
=10-10+2.18+2.18
=0+2.18+2.18
=2.18+2.18
=4.36
=10-10+2.18+2.18
=0+2.18+2.18
=2.18+2.18
=4.36
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13.56-7.82+2.18-3.56
=(13.56-3.56)+2.18-7.82
=10+2.18-7.82
=2.18+218
=4.36
=(13.56-3.56)+2.18-7.82
=10+2.18-7.82
=2.18+218
=4.36
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