请用简便计算:3.55+8.51-(2.55-0.49)?
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请用简便计算:3.55+8.51-(2.55-0.49)?
请用简便计算:3.55+8.51-(2.55-0.49)?
请用简便计算:3.55+8.51-(2.55-0.49)?
3.55+8.51-(2.55-0.49)
=3.55+8.51-2.55+0.49
=(3.55-2.55)+(8.51+0.49)
=1+9
=10
3.55+8.51-(2.55-0.49)=(3.55-2.55)+(8.51+0.49)=1+9=10
3.55+8.51-(2.55-0.49)
=3.55+8.51-2.55+0.49
=3.55-2.55+(8.51+0.49)
=1+9
=10
3.55+8.51-(2.55-0.49)=(3.55-2.55)+(8.51+0.49)=1+9=10