8.56-3.7+1.35-6.3 简便计算

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8.56-3.7+1.35-6.3 简便计算
8.56-3.7+1.35-6.3 简便计算

8.56-3.7+1.35-6.3 简便计算
8.56-3.7+1.35-6.3
=8.56+1.35-3.7-6.3
=8.56+1.34+0.01-10
=9.9+0.01-10
=-0.09

8.56-3.7+1.35-6.3=(8.56+1.35)-(3.7+6.3)=9.91-10=-0.09

8.56-3.7+1.35-6.3
=8.56+1.35-(3.7+6.3)
=9.91-10
=0.09

8.56+1.35-(3.7+6.3)=9.91-10