64.3 3.17-3.34 2.73的简便运算?
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64.3+3.17-3.34+2.73的简便运算
64.3+3.17-3.34+2.73= 64.3+(3.17+2.73)-3.34= 64.3+5.9-3.34=70.2-3.34=66.86
64.3+3.17-3.34+2.73= 64.3+(3.17+2.73)-3.34= 64.3+5.9-3.34=70.2-3.34=66.86
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原式=64+3.2-0.03+0.3-3-0.34+3-0.27
=64+3.2-3+3+0.27-0.34-0.27
=67.2-0.34
=67+0.2-0.2-0.14
=66.86
=64+3.2-3+3+0.27-0.34-0.27
=67.2-0.34
=67+0.2-0.2-0.14
=66.86
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64.3+3.17-3.34+2.73
= 64.3+(3.17+2.73)-3.34
= 64.3+5.9-3.34
=70.2-3.34
=66.86
= 64.3+(3.17+2.73)-3.34
= 64.3+5.9-3.34
=70.2-3.34
=66.86
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=64.3-3.34+(3.17+2.73)
=60.96+5.9
=66.86
=60.96+5.9
=66.86
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