3.86*9.8+0.386*2等于多少乘以多少加多少乘以多少

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3.86*9.8+0.386*2等于多少乘以多少加多少乘以多少
3.86*9.8+0.386*2等于多少乘以多少加多少乘以多少

3.86*9.8+0.386*2等于多少乘以多少加多少乘以多少
3.86*9.8+0.386*2
=3.86*9.8+3.86*0.2
=3.86*(9.8+0.2)
=3.86*10=38.6

3.86*9.8+0.386*2
=3.86*9.8+3.86*0.2
=3.86x(9.8+0.2)
=3.86x10
=38.6

3.86*9.8+0.386*2=3.86*9.8+3.86*0.2=3.86*10=38.6

3.86(9.8+0.2)=38.6

3.86*9.8+0.386*2
=3.86*9.8+3.86*0.2
=3.86x(9.8+0.2)
=3.86x10
=38.6